Earle Nietzel created MATH-1368:
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Summary: equalsIncludingNaN not producing the expected result
Key: MATH-1368
URL: https://issues.apache.org/jira/browse/MATH-1368
Project: Commons Math
Issue Type: Bug
Affects Versions: 2.2
Reporter: Earle Nietzel
I wouldn't expect this result given these 2 values?
x=-1.0, y=4.0
x to long bits = -4616189618054758400
y to long bits = 4616189618054758400
x equals y = false
MathUtils.equalsIncludingNaN(x, y) = true
MathUtils.equals(x, y) = false
It appears the lexicographic ordering logic is producing this, other numbers
are fine. Notice the value produced for -1.0 and 4.0 by
Double.doubleToLongBits().
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