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Posted to commits@commons.apache.org by er...@apache.org on 2018/01/26 14:00:12 UTC
[21/37] commons-numbers git commit: NUMBERS-13: log() passes all tests
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 <er...@apache.org>
Authored: Wed Jul 19 16:14:04 2017 +0200
Committer: Eric Barnhill <er...@apache.org>
Committed: Wed Jul 19 16:14:04 2017 +0200
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.../main/java/org/apache/commons/numbers/complex/Complex.java | 7 +++++++
1 file changed, 7 insertions(+)
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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
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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));
}