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https://issues.apache.org/jira/browse/MATH-620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13101645#comment-13101645
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Gilles commented on MATH-620:
-----------------------------
It's on the right track, but the test method stops as soon as it encounters a
difference; thus, we cannot have a complete overview of all the differences
with Octave.
> multiplication of infinity
> --------------------------
>
> Key: MATH-620
> URL: https://issues.apache.org/jira/browse/MATH-620
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.0
> Reporter: Arne Plöse
> Priority: Minor
> Attachments: ComplexOctaveTest.java
>
>
> Take the following testcase
> {code}
> Assert.assertEquals(neginf, inf* neginf, Double.MIN_VALUE); // <--Passes
> ordinary double
> Assert.assertEquals(new Complex(neginf, 0), new Complex(inf, 0).multiply(new
> Complex(neginf, 0)));// <-- Fail only real parts no imaginary parts
> {code}
> The outcome of multiply is Complex.INF if one part is infinity.
> why not simply compute the multiplication and thats is?
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