Factorial in numpy and scipy

python numpy scipy
MOON picture MOON · Feb 13, 2014 · Viewed 138.5k times · Source

How can I import factorial function from numpy and scipy separately in order to see which one is faster?

I already imported factorial from python itself by import math. But, it does not work for numpy and scipy.

Answer

Ashwini Chaudhary picture Ashwini Chaudhary · Feb 13, 2014

You can import them like this:

In [7]: import scipy, numpy, math                                                          

In [8]: scipy.math.factorial, numpy.math.factorial, math.factorial
Out[8]: 
(<function math.factorial>,                                                                
 <function math.factorial>,                                                                
 <function math.factorial>)

scipy.math.factorial and numpy.math.factorial seem to simply be aliases/references for/to math.factorial, that is scipy.math.factorial is math.factorial and numpy.math.factorial is math.factorial should both give True.

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