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Posted to commits@commons.apache.org by ah...@apache.org on 2019/12/20 17:58:12 UTC
[commons-numbers] 21/30: Add atanh assumption on x close to 1.
This is an automated email from the ASF dual-hosted git repository.
aherbert pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-numbers.git
commit f5ba494b10ea41cf4dad439ce882457e52d84ceb
Author: Alex Herbert <ah...@apache.org>
AuthorDate: Thu Dec 19 22:56:10 2019 +0000
Add atanh assumption on x close to 1.
---
.../src/test/java/org/apache/commons/numbers/complex/ComplexTest.java | 3 +++
1 file changed, 3 insertions(+)
diff --git a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java
index b14166b..9d89490 100644
--- a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java
+++ b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java
@@ -2041,5 +2041,8 @@ public class ComplexTest {
Assertions.assertEquals(result, Math.log1p(result));
Assertions.assertEquals(result, result - result * result / 2,
"Expected log1p Taylor series to be redundant");
+ // Can we assume if x != 1 then (x-1) is valid for multiplications.
+ Assertions.assertNotEquals(0, 1 - Math.nextUp(1));
+ Assertions.assertNotEquals(0, 1 - Math.nextDown(1));
}
}