[issue24270] PEP 485 (math.isclose) implementation

[Tal Einat]

Tal Einat added the comment:

I have a question regarding complex values. The code (from Chris Barker) doesn't support complex values (only things that can be converted into doubles). However, the PEP states the following under "Non-float types":

"complex : for complex, the absolute value of the complex values will be used for scaling and comparison. If a complex tolerance is passed in, the absolute value will be used as the tolerance."

Should math.isclose() support complex values? Should an equivalent function be added to cmath? Should we just leave things as they are and remove mention of complex values from the PEP (it isn't mentioned in the docs)?

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<http://bugs.python.org/issue24270>
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