I am using numpy-0.9.8 and it seems that numpy's log2 function can't
handle large integers?
In [19]:
a=11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
In [20]: math.log(a,2)
Out[20]: 292.48167544353294
In [21]: numpy.log2(a)
---------------------------------------------------------------------------
exceptions.AttributeError Traceback (most
recent call last)
/home/david/<ipython console>
/usr/lib/python2.4/site-packages/numpy/lib/ufunclike.py in log2(x, y)
52 x = asarray(x)
53 if y is None:
---> 54 y = umath.log(x)
55 else:
56 umath.log(x, y)
AttributeError: 'long' object has no attribute 'log'
Does anyone else get this in numpy? if not, what version are you using?
--
David Grant
http://www.davidgrant.ca
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