Comment #3 on issue 1087 by fredrik.johansson: implement StieltjesGamma
http://code.google.com/p/sympy/issues/detail?id=1087
Just a note that I've implemented a better algorithm, so mpmath is now
about as fast
as Mathematica (perhaps some constant factor slower):
Python 2.6 (r26:66721, Oct 2 2008, 11:35:03) [MSC v.1500 32 bit (Intel)]
on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> from mpmath import *
>>> mp.dps = 100
>>> import psyco; psyco.full()
>>> timing(stieltjes, 10)
0.82698667009354543
>>> timing(stieltjes, 100)
1.7959749074253852
Mathematica 6.0 for Linux x86 (32-bit)
Copyright 1988-2008 Wolfram Research, Inc.
In[1]:= Timing[N[StieltjesGamma[10],100];]
Out[1]= {0.26096, Null}
In[2]:= Timing[N[StieltjesGamma[100],100];]
Out[2]= {2.45263, Null}
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