http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Acos.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Acos.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Acos.java
index a9df4b7..1b51cde 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Acos.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Acos.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Arc-cosine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Acosh.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Acosh.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Acosh.java
index 58fb19f..3dfcb5e 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Acosh.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Acosh.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Hyperbolic arc-cosine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Add.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Add.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Add.java
index 366a303..68680aa 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Add.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Add.java
@@ -15,9 +15,9 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
+import org.apache.commons.math4.analysis.BivariateFunction;
 
 /**
  * Add the two operands.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Asin.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Asin.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Asin.java
index 8fa9bdf..f6e439d 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Asin.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Asin.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Arc-sine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Asinh.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Asinh.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Asinh.java
index b5b9fd2..a632acb 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Asinh.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Asinh.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Hyperbolic arc-sine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Atan.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Atan.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Atan.java
index 36b1265..214428e 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Atan.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Atan.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Arc-tangent function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Atan2.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Atan2.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Atan2.java
index d5f385f..6673b4a 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Atan2.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Atan2.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.BivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Arc-tangent function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Atanh.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Atanh.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Atanh.java
index 5c04599..c342b67 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Atanh.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Atanh.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Hyperbolic arc-tangent function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Cbrt.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Cbrt.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Cbrt.java
index f26ef71..2253951 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Cbrt.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Cbrt.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Cube root function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Ceil.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Ceil.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Ceil.java
index 2b9867e..21d8034 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Ceil.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Ceil.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * {@code ceil} function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Constant.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Constant.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Constant.java
index 4027e59..e2fac7a 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Constant.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Constant.java
@@ -15,11 +15,11 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
 
 /**
  * Constant function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Cos.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Cos.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Cos.java
index 73a5e6e..a6607bf 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Cos.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Cos.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Cosine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Cosh.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Cosh.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Cosh.java
index 185698b..5c9416b 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Cosh.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Cosh.java
@@ -15,12 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Hyperbolic cosine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Divide.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Divide.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Divide.java
index 73413a2..18f8f31 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Divide.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Divide.java
@@ -15,9 +15,9 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
+import org.apache.commons.math4.analysis.BivariateFunction;
 
 /**
  * Divide the first operand by the second.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Exp.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Exp.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Exp.java
index f656712..6233bbc 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Exp.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Exp.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Exponential function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Expm1.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Expm1.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Expm1.java
index 46b0b2f..552411d 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Expm1.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Expm1.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <code>e<sup>x</sup>-1</code> function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Floor.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Floor.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Floor.java
index 8d70627..d630935 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Floor.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Floor.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * {@code floor} function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Gaussian.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Gaussian.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Gaussian.java
index 8c64c8b..da3eecb 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Gaussian.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Gaussian.java
@@ -15,21 +15,21 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Precision;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Precision;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Gaussian_function";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/HarmonicOscillator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/HarmonicOscillator.java
 
b/src/main/java/org/apache/commons/math4/analysis/function/HarmonicOscillator.java
index 0fbad9c..5e43367 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/function/HarmonicOscillator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/function/HarmonicOscillator.java
@@ -15,17 +15,17 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
-
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.analysis.function;
+
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Harmonic_oscillator";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Identity.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Identity.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Identity.java
index d21f7e0..1309f41 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Identity.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Identity.java
@@ -15,11 +15,11 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
 
 /**
  * Identity function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Inverse.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Inverse.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Inverse.java
index e38f689..459eb22 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Inverse.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Inverse.java
@@ -15,13 +15,13 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
 
 /**
  * Inverse function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Log.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Log.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Log.java
index a1e12dc..dbf332c 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Log.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Log.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Natural logarithm function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Log10.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Log10.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Log10.java
index 66c03e1..6ccc3cf 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Log10.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Log10.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Base 10 logarithm function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Log1p.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Log1p.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Log1p.java
index 4966318..1974f05 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Log1p.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Log1p.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <code>log(1 + p)</code> function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Logistic.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Logistic.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Logistic.java
index c90203c..3ca6b71 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Logistic.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Logistic.java
@@ -15,18 +15,18 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
-
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.analysis.function;
+
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Generalised_logistic_function";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Logit.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Logit.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Logit.java
index 39abe4d..83e9ada 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Logit.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Logit.java
@@ -15,18 +15,18 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
-
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.analysis.function;
+
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Logit";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Max.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Max.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Max.java
index 591ac55..f8ca201 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Max.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Max.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.BivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Maximum function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Min.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Min.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Min.java
index a776b79..ee23e96 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Min.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Min.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.BivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Minimum function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Minus.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Minus.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Minus.java
index e532779..d0546c6 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Minus.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Minus.java
@@ -15,11 +15,11 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
 
 /**
  * Minus function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Multiply.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Multiply.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Multiply.java
index b7e771b..a5f6be5 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Multiply.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Multiply.java
@@ -15,9 +15,9 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
+import org.apache.commons.math4.analysis.BivariateFunction;
 
 /**
  * Multiply the two operands.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Pow.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Pow.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Pow.java
index 756dc42..475d6b7 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Pow.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Pow.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.BivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Power function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Power.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Power.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Power.java
index 953bcab..12722ca 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Power.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Power.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
-
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.analysis.function;
+
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Power function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Rint.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Rint.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Rint.java
index 4edde58..2b662f5 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Rint.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Rint.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * {@code rint} function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Sigmoid.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Sigmoid.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Sigmoid.java
index 54639f9..5a80a0a 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Sigmoid.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Sigmoid.java
@@ -15,19 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Sigmoid_function";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Signum.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Signum.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Signum.java
index ddde66e..c15512b 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Signum.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Signum.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * {@code signum} function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Sin.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Sin.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Sin.java
index 71c91e7..f094d05 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Sin.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Sin.java
@@ -15,12 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Sine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Sinc.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Sinc.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Sinc.java
index 553cfff..fc0d66e 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Sinc.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Sinc.java
@@ -15,15 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
-
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.analysis.function;
+
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Sinc_function";>Sinc</a> function,

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Sinh.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Sinh.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Sinh.java
index 1eac044..db6c311 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Sinh.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Sinh.java
@@ -15,12 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Hyperbolic sine function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Sqrt.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Sqrt.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Sqrt.java
index 720d44d..97c7980 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Sqrt.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Sqrt.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Square-root function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/StepFunction.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/StepFunction.java 
b/src/main/java/org/apache/commons/math4/analysis/function/StepFunction.java
index 51e3678..8d4e419 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/StepFunction.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/StepFunction.java
@@ -15,15 +15,16 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
 import java.util.Arrays;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NonMonotonicSequenceException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.util.MathArrays;
+
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NonMonotonicSequenceException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.util.MathArrays;
 
 /**
  * <a href="http://en.wikipedia.org/wiki/Step_function";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Subtract.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/Subtract.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Subtract.java
index 7b87dd6..71dd8e6 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Subtract.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Subtract.java
@@ -15,9 +15,9 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.BivariateFunction;
+import org.apache.commons.math4.analysis.BivariateFunction;
 
 /**
  * Subtract the second operand from the first.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Tan.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Tan.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Tan.java
index 03304b4..f2f1d3c 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Tan.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Tan.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Tangent function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Tanh.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Tanh.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Tanh.java
index 6c7ef0d..64e9400 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Tanh.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Tanh.java
@@ -15,14 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
-import 
org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.DifferentiableUnivariateFunction;
+import org.apache.commons.math4.analysis.FunctionUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.differentiation.DerivativeStructure;
+import 
org.apache.commons.math4.analysis.differentiation.UnivariateDifferentiableFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Hyperbolic tangent function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/Ulp.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math4/analysis/function/Ulp.java 
b/src/main/java/org/apache/commons/math4/analysis/function/Ulp.java
index d075a73..a4b9418 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/Ulp.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/Ulp.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * {@code ulp} function.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/function/package-info.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/function/package-info.java 
b/src/main/java/org/apache/commons/math4/analysis/function/package-info.java
index cb24544..695f689 100644
--- a/src/main/java/org/apache/commons/math4/analysis/function/package-info.java
+++ b/src/main/java/org/apache/commons/math4/analysis/function/package-info.java
@@ -23,4 +23,4 @@
  *    </p>
  *
  */
-package org.apache.commons.math3.analysis.function;
+package org.apache.commons.math4.analysis.function;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/BaseAbstractUnivariateIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/BaseAbstractUnivariateIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/BaseAbstractUnivariateIntegrator.java
index 23c25b0..76fcdea 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/BaseAbstractUnivariateIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/BaseAbstractUnivariateIntegrator.java
@@ -14,18 +14,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
-
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.solvers.UnivariateSolverUtils;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.util.Incrementor;
-import org.apache.commons.math3.util.MathUtils;
+package org.apache.commons.math4.analysis.integration;
+
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.solvers.UnivariateSolverUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.util.Incrementor;
+import org.apache.commons.math4.util.MathUtils;
 
 /**
  * Provide a default implementation for several generic functions.
@@ -80,7 +80,7 @@ public abstract class BaseAbstractUnivariateIntegrator 
implements UnivariateInte
      *       achieved due to large values or short mantissa length. If this
      *       should be the primary criterion for convergence rather then a
      *       safety measure, set the absolute accuracy to a ridiculously small 
value,
-     *       like {@link org.apache.commons.math3.util.Precision#SAFE_MIN 
Precision.SAFE_MIN}.</li>
+     *       like {@link org.apache.commons.math4.util.Precision#SAFE_MIN 
Precision.SAFE_MIN}.</li>
      *   <li>absolute accuracy:
      *       The default is usually chosen so that results in the interval
      *       -10..-0.1 and +0.1..+10 can be found with a reasonable accuracy. 
If the

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/IterativeLegendreGaussIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/IterativeLegendreGaussIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/IterativeLegendreGaussIntegrator.java
index b7c6b81..826aabc 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/IterativeLegendreGaussIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/IterativeLegendreGaussIntegrator.java
@@ -14,18 +14,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
+package org.apache.commons.math4.analysis.integration;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import 
org.apache.commons.math3.analysis.integration.gauss.GaussIntegratorFactory;
-import org.apache.commons.math3.analysis.integration.gauss.GaussIntegrator;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.exception.util.LocalizedFormats;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.integration.gauss.GaussIntegrator;
+import 
org.apache.commons.math4.analysis.integration.gauss.GaussIntegratorFactory;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.exception.util.LocalizedFormats;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * This algorithm divides the integration interval into equally-sized

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/LegendreGaussIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/LegendreGaussIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/LegendreGaussIntegrator.java
index 08f4794..94d3325 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/LegendreGaussIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/LegendreGaussIntegrator.java
@@ -14,15 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
+package org.apache.commons.math4.analysis.integration;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.exception.util.LocalizedFormats;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.exception.util.LocalizedFormats;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Implements the <a 
href="http://mathworld.wolfram.com/Legendre-GaussQuadrature.html";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/MidPointIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/MidPointIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/MidPointIntegrator.java
index aaea286..edcb300 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/MidPointIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/MidPointIntegrator.java
@@ -14,15 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
-
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.analysis.integration;
+
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Implements the <a href="http://en.wikipedia.org/wiki/Midpoint_method";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/RombergIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/RombergIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/RombergIntegrator.java
index 430cd6e..923de73 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/RombergIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/RombergIntegrator.java
@@ -14,14 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
+package org.apache.commons.math4.analysis.integration;
 
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Implements the <a 
href="http://mathworld.wolfram.com/RombergIntegration.html";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/SimpsonIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/SimpsonIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/SimpsonIntegrator.java
index b13ff5f..5cfea07 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/SimpsonIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/SimpsonIntegrator.java
@@ -14,14 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
+package org.apache.commons.math4.analysis.integration;
 
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Implements <a href="http://mathworld.wolfram.com/SimpsonsRule.html";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/TrapezoidIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/TrapezoidIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/TrapezoidIntegrator.java
index d22d12d..893d602 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/TrapezoidIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/TrapezoidIntegrator.java
@@ -14,15 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
+package org.apache.commons.math4.analysis.integration;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Implements the <a href="http://mathworld.wolfram.com/TrapezoidalRule.html";>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/UnivariateIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/UnivariateIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/UnivariateIntegrator.java
index f5673fb..bfc351e 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/UnivariateIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/UnivariateIntegrator.java
@@ -14,13 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration;
+package org.apache.commons.math4.analysis.integration;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
 
 /**
  * Interface for univariate real integration algorithms.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/gauss/BaseRuleFactory.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/BaseRuleFactory.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/BaseRuleFactory.java
index 556fa0c..0b36238 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/BaseRuleFactory.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/BaseRuleFactory.java
@@ -14,14 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration.gauss;
+package org.apache.commons.math4.analysis.integration.gauss;
 
 import java.util.Map;
 import java.util.TreeMap;
-import org.apache.commons.math3.util.Pair;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.util.LocalizedFormats;
+
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.util.LocalizedFormats;
+import org.apache.commons.math4.util.Pair;
 
 /**
  * Base class for rules that determines the integration nodes and their

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegrator.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegrator.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegrator.java
index 5c7b37f..f934ce6 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegrator.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegrator.java
@@ -14,13 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration.gauss;
+package org.apache.commons.math4.analysis.integration.gauss;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NonMonotonicSequenceException;
-import org.apache.commons.math3.util.MathArrays;
-import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NonMonotonicSequenceException;
+import org.apache.commons.math4.util.MathArrays;
+import org.apache.commons.math4.util.Pair;
 
 /**
  * Class that implements the Gaussian rule for

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegratorFactory.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegratorFactory.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegratorFactory.java
index ebe9a5b..cbfde43 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegratorFactory.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/GaussIntegratorFactory.java
@@ -14,13 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration.gauss;
+package org.apache.commons.math4.analysis.integration.gauss;
 
 import java.math.BigDecimal;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.util.Pair;
 
 /**
  * Class that provides different ways to compute the nodes and weights to be
@@ -39,7 +39,7 @@ public class GaussIntegratorFactory {
     /**
      * Creates a Gauss-Legendre integrator of the given order.
      * The call to the
-     * {@link 
GaussIntegrator#integrate(org.apache.commons.math3.analysis.UnivariateFunction)
+     * {@link 
GaussIntegrator#integrate(org.apache.commons.math4.analysis.UnivariateFunction)
      * integrate} method will perform an integration on the natural interval
      * {@code [-1 , 1]}.
      *
@@ -53,7 +53,7 @@ public class GaussIntegratorFactory {
     /**
      * Creates a Gauss-Legendre integrator of the given order.
      * The call to the
-     * {@link 
GaussIntegrator#integrate(org.apache.commons.math3.analysis.UnivariateFunction)
+     * {@link 
GaussIntegrator#integrate(org.apache.commons.math4.analysis.UnivariateFunction)
      * integrate} method will perform an integration on the given interval.
      *
      * @param numberOfPoints Order of the integration rule.
@@ -73,7 +73,7 @@ public class GaussIntegratorFactory {
     /**
      * Creates a Gauss-Legendre integrator of the given order.
      * The call to the
-     * {@link 
GaussIntegrator#integrate(org.apache.commons.math3.analysis.UnivariateFunction)
+     * {@link 
GaussIntegrator#integrate(org.apache.commons.math4.analysis.UnivariateFunction)
      * integrate} method will perform an integration on the natural interval
      * {@code [-1 , 1]}.
      *
@@ -88,7 +88,7 @@ public class GaussIntegratorFactory {
 
     /**
      * Creates an integrator of the given order, and whose call to the
-     * {@link 
GaussIntegrator#integrate(org.apache.commons.math3.analysis.UnivariateFunction)
+     * {@link 
GaussIntegrator#integrate(org.apache.commons.math4.analysis.UnivariateFunction)
      * integrate} method will perform an integration on the given interval.
      *
      * @param numberOfPoints Order of the integration rule.
@@ -108,14 +108,14 @@ public class GaussIntegratorFactory {
     /**
      * Creates a Gauss-Hermite integrator of the given order.
      * The call to the
-     * {@link 
SymmetricGaussIntegrator#integrate(org.apache.commons.math3.analysis.UnivariateFunction)
+     * {@link 
SymmetricGaussIntegrator#integrate(org.apache.commons.math4.analysis.UnivariateFunction)
      * integrate} method will perform a weighted integration on the interval
      * {@code [-&inf;, +&inf;]}: the computed value is the improper integral of
      * <code>
      *  e<sup>-x<sup>2</sup></sup> f(x)
      * </code>
      * where {@code f(x)} is the function passed to the
-     * {@link 
SymmetricGaussIntegrator#integrate(org.apache.commons.math3.analysis.UnivariateFunction)
+     * {@link 
SymmetricGaussIntegrator#integrate(org.apache.commons.math4.analysis.UnivariateFunction)
      * integrate} method.
      *
      * @param numberOfPoints Order of the integration rule.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/gauss/HermiteRuleFactory.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/HermiteRuleFactory.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/HermiteRuleFactory.java
index 3d873ab..cf8ccc6 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/HermiteRuleFactory.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/HermiteRuleFactory.java
@@ -14,11 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration.gauss;
+package org.apache.commons.math4.analysis.integration.gauss;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.Pair;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Pair;
 
 /**
  * Factory that creates a

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/main/java/org/apache/commons/math4/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
----------------------------------------------------------------------
diff --git 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
index 93e1738..81e6727 100644
--- 
a/src/main/java/org/apache/commons/math4/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
+++ 
b/src/main/java/org/apache/commons/math4/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
@@ -14,13 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.analysis.integration.gauss;
+package org.apache.commons.math4.analysis.integration.gauss;
 
 import java.math.BigDecimal;
 import java.math.MathContext;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.util.Pair;
 
 /**
  * Factory that creates Gauss-type quadrature rule using Legendre polynomials.

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