Re: Wolfram, meet Stefan and Boltzmann
- To: mathgroup at smc.vnet.net
- Subject: [mg117419] Re: Wolfram, meet Stefan and Boltzmann
- From: Robert Rosenbaum <robertr at math.uh.edu>
- Date: Fri, 18 Mar 2011 05:58:51 -0500 (EST)
Slow for me too:
In[1]:= Timing[Integrate[x^3/(Exp[x] - 1), {x, 0, Infinity}]]
Out[1]= {20.7497, \[Pi]^4/15}
I get essentially the same timing if I evaluate 1+1 in a separate cell first.
Mathematica 7.0.0 32bit
2-year-old Macbook (not pro)
OS X 10.6.6
2 Ghz Intel Core 2 Duo
2GB 1067 MHz memory
On Mar 16, 2011, at 6:24 AM, AES wrote:
> In article <ilnh9v$ob3$1 at smc.vnet.net>, Roman <rschmied at gmail.com>
> wrote:
>
>> AES,
>> mine is taking 18 seconds as well, and I have a MacBook as well. Maybe
>> a Mac hardware thing?
>
> Thanks for confirmation.
>
> For the record, I'm absolutely not pushing any agenda here -- just
> curious. Macs and Mathematica do many things so blazingly fast it's
> near unbelievable. And this seems like a relatively simple, smooth
> integral using only simple, smooth, commonplace functions. So why does
> evaluating it take so long?
>
Best,
Robert