Repository: commons-numbers Updated Branches: refs/heads/cis-method [created] 4f28fca00
NUMBERS-28: Added cis() method to Complex Project: http://git-wip-us.apache.org/repos/asf/commons-numbers/repo Commit: http://git-wip-us.apache.org/repos/asf/commons-numbers/commit/4f28fca0 Tree: http://git-wip-us.apache.org/repos/asf/commons-numbers/tree/4f28fca0 Diff: http://git-wip-us.apache.org/repos/asf/commons-numbers/diff/4f28fca0 Branch: refs/heads/cis-method Commit: 4f28fca006f6e9076c8e52c42dbb6b0682ea3166 Parents: 1e4947b Author: Eric Barnhill <ericbarnh...@apache.org> Authored: Wed Apr 26 01:00:13 2017 +0200 Committer: Eric Barnhill <ericbarnh...@apache.org> Committed: Wed Apr 26 01:00:13 2017 +0200 ---------------------------------------------------------------------- .../java/org/apache/commons/numbers/complex/Complex.java | 11 +++++++++++ 1 file changed, 11 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/4f28fca0/commons-numbers-complex/src/main/java/org/apache/commons/numbers/complex/Complex.java ---------------------------------------------------------------------- diff --git a/commons-numbers-complex/src/main/java/org/apache/commons/numbers/complex/Complex.java b/commons-numbers-complex/src/main/java/org/apache/commons/numbers/complex/Complex.java index 4e9022e..c7c7b0b 100644 --- a/commons-numbers-complex/src/main/java/org/apache/commons/numbers/complex/Complex.java +++ b/commons-numbers-complex/src/main/java/org/apache/commons/numbers/complex/Complex.java @@ -95,6 +95,17 @@ public class Complex implements Serializable { } /** + * For a real constructor argument x, returns a new Complex object c + * where {@code c = cos(x) + i sin (x)} + * + * @param x {@code double} to build the cis number + * @return {@code Complex} + */ + public Complex cis(double x) { + return new Complex(Math.cos(x), Math.sin(x)); + } + + /** * Return the absolute value of this complex number. * Returns {@code NaN} if either real or imaginary part is {@code NaN} * and {@code Double.POSITIVE_INFINITY} if neither part is {@code NaN},
