[Numpy-discussion] NumPy-Discussion Digest, Vol 57, Issue 155
Tue Jun 28 13:03:05 CDT 2011
> From: santhu kumar <email@example.com>
> After looking at the suggestions I have checked my matrix again and found
> that the matrix was wrong.(Has some NAN's and other values which are wrong).
> After correcting it it works fine.
Not to beat a dead horse, but here's an (ancient) related numpy ticket: http://projects.scipy.org/numpy/ticket/706
It may not be your case here, but this bug bit me in the past as well (OS X with vecLib). For what it's worth, my solution was what Lou suggested (squaring the input).
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