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Posted to commits@commons.apache.org by er...@apache.org on 2018/01/26 14:44:37 UTC
[17/36] commons-numbers git commit: NUMBERS-13: atanh() passes all
tests
NUMBERS-13: atanh() 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/48464a3c
Tree: http://git-wip-us.apache.org/repos/asf/commons-numbers/tree/48464a3c
Diff: http://git-wip-us.apache.org/repos/asf/commons-numbers/diff/48464a3c
Branch: refs/heads/master
Commit: 48464a3cf57e8a62d97e8c8741cadad23406e4ea
Parents: ade98aa
Author: Eric Barnhill <er...@apache.org>
Authored: Tue Jul 11 09:29:11 2017 +0200
Committer: Eric Barnhill <er...@apache.org>
Committed: Tue Jul 11 09:29:11 2017 +0200
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.../apache/commons/numbers/complex/Complex.java | 25 ++++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/48464a3c/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 d3d8aa8..e4c0a71 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
@@ -643,7 +643,7 @@ in the
public Complex acos() {
if (real == 0 && Double.isNaN(imaginary)) {
return new Complex(Math.PI * 0.5, Double.NaN);
- } else if (!Double.isNaN(real) && !Double.isInfinite(real) && imaginary == Double.POSITIVE_INFINITY) {
+ } else if (neitherInfiniteNorZeroNorNaN(real) && imaginary == Double.POSITIVE_INFINITY) {
return new Complex(Math.PI * 0.5, Double.NEGATIVE_INFINITY);
} else if (real == Double.NEGATIVE_INFINITY && imaginary == 1) {
return new Complex(Math.PI, Double.NEGATIVE_INFINITY);
@@ -701,7 +701,7 @@ in the
* @since 1.2
*/
public Complex asinh(){
- if (!Double.isNaN(real) && !Double.isInfinite(real) && imaginary == Double.POSITIVE_INFINITY) {
+ if (neitherInfiniteNorZeroNorNaN(real) && imaginary == Double.POSITIVE_INFINITY) {
return new Complex(Double.POSITIVE_INFINITY, Math.PI * 0.5);
} else if (real == Double.POSITIVE_INFINITY && !Double.isInfinite(imaginary) && !Double.isNaN(imaginary)) {
return new Complex(Double.POSITIVE_INFINITY, 0);
@@ -729,6 +729,21 @@ in the
* @since 1.2
*/
public Complex atanh(){
+ if (real == 0 && Double.isNaN(imaginary)) {
+ return new Complex(0, Double.NaN);
+ } else if (neitherInfiniteNorZeroNorNaN(real) && imaginary == 0) {
+ return new Complex(Double.POSITIVE_INFINITY, 0);
+ } else if (neitherInfiniteNorZeroNorNaN(real) && imaginary == Double.POSITIVE_INFINITY) {
+ return new Complex(0, Math.PI*0.5);
+ } else if (real == Double.POSITIVE_INFINITY && neitherInfiniteNorZeroNorNaN(imaginary)) {
+ return new Complex(0, Math.PI*0.5);
+ } else if (real == Double.POSITIVE_INFINITY && imaginary == Double.POSITIVE_INFINITY) {
+ return new Complex(0, Math.PI*0.5);
+ } else if (real == Double.POSITIVE_INFINITY && Double.isNaN(imaginary)) {
+ return new Complex(0, Double.NaN);
+ } else if (Double.isNaN(real) && imaginary == Double.POSITIVE_INFINITY) {
+ return new Complex(0, Math.PI*0.5);
+ }
return this.add(Complex.ONE).divide(Complex.ONE.subtract(this)).log().divide(new Complex(2));
}
/**
@@ -1225,4 +1240,10 @@ in the
private static boolean equals(double x, double y) {
return new Double(x).equals(new Double(y));
}
+
+ private static boolean neitherInfiniteNorZeroNorNaN(double d) {
+ if (!Double.isNaN(d) && !Double.isInfinite(d) && d != 0) {
+ return true;
+ } else return false;
+ }
}