Can't exponentiate zero in NumPy

Michael George Lerner mlerner at nospam.is.goodspam.umich.edu
Mon Sep 9 18:01:32 CEST 2002


Rick Muller <rpm at wag.caltech.edu> wrote:

> This crashes on Linux, but not on Mac OS X.

Here's another data point for you:

PythonWin 2.2.1 (#34, Apr 15 2002, 09:51:39) [MSC 32 bit (Intel)] on win32.
Portions Copyright 1994-2001 Mark Hammond 
>>> from Numeric import *
>>> a = zeros(3,Float)
>>> a**2
array([ 0.,  0.,  0.])
>>> a[1] = 1.e-310
>>> a
array([  0.00000000e+000,   1.00000000e-310,   0.00000000e+000])
>>> a**2
array([ 0.,  0.,  0.])
>>> import Numeric
>>> Numeric.__version__
'21.0'




More information about the Python-list mailing list