Thu, 15 Jul 2010 09:54:12 -0500, John Hunter wrote:
[clip]
> In [4]: np.isinf(x)
> Warning: invalid value encountered in isinf Out[4]: True
As far as I know, isinf has always created NaNs -- since 2006 it has been
defined on "unsupported" platforms as
(!isnan((x)) && isnan((x)-(x)))
I'll replace it by the obvious
((x) == NPY_INFINITY || (x) == -NPY_INFINITY)
which is true only for +-inf, and cannot raise any FPU exceptions.
--
Pauli Virtanen
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