[SciPy-user] scipy.special.erf randomly returns NANs on OSX

Robert Kern robert.kern at gmail.com
Sun Jan 22 20:18:45 CST 2006


Evan Monroig wrote:
> Hi,
> 
> I have this strange problem that the special erf function returns NANs
> when the input is an array:

> scipy is 0.4.4.1526, numpy is 0.9.3.1836, I am running on Mac OS X
> with MacPython 2.4.1
> 
> Can anyone reproduce the problem?

Actually, on OS X, /usr/include/math.h defines an erf() function that is
probably getting picked up instead of Cephes's version. Bad Apple!

-- 
Robert Kern
robert.kern at gmail.com

"In the fields of hell where the grass grows high
 Are the graves of dreams allowed to die."
  -- Richard Harter



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