NUMBERS-13: log() passes all tests
Project: http://git-wip-us.apache.org/repos/asf/commons-numbers/repo Commit: http://git-wip-us.apache.org/repos/asf/commons-numbers/commit/ed752558 Tree: http://git-wip-us.apache.org/repos/asf/commons-numbers/tree/ed752558 Diff: http://git-wip-us.apache.org/repos/asf/commons-numbers/diff/ed752558 Branch: refs/heads/master Commit: ed75255890e78d9b7ee261f7daad9b3436c74e8e Parents: 6bf4d8b Author: Eric Barnhill <ericbarnh...@apache.org> Authored: Wed Jul 19 16:14:04 2017 +0200 Committer: Eric Barnhill <ericbarnh...@apache.org> Committed: Wed Jul 19 16:14:04 2017 +0200 ---------------------------------------------------------------------- .../main/java/org/apache/commons/numbers/complex/Complex.java | 7 +++++++ 1 file changed, 7 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/ed752558/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 2a1795c..effa604 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 @@ -879,6 +879,13 @@ in the * of {@code this}. */ public Complex log() { + if (real == Double.POSITIVE_INFINITY && imaginary == Double.POSITIVE_INFINITY) { + return new Complex(Double.POSITIVE_INFINITY, Math.PI * 0.25); + } else if (real == Double.POSITIVE_INFINITY && Double.isNaN(imaginary)) { + return new Complex(Double.POSITIVE_INFINITY, Double.NaN); + } else if (Double.isNaN(real) && imaginary == Double.POSITIVE_INFINITY) { + return new Complex(Double.POSITIVE_INFINITY, Double.NaN); + } return new Complex(Math.log(abs()), Math.atan2(imaginary, real)); }
