Re: Wolfram, meet Stefan and Boltzmann
- To: mathgroup at smc.vnet.net
- Subject: [mg117284] Re: Wolfram, meet Stefan and Boltzmann
- From: Peltio <peltio at twilight.zone>
- Date: Mon, 14 Mar 2011 05:57:57 -0500 (EST)
- References: <ilfgt6$6t8$1@smc.vnet.net>
- Reply-to: peltioNOSP at Mgmail.com.invalid
AES wrote :
> Opened my copy of Mathematica 8.0 on my MacBook running Snow Leopard,
> and as my first action typed in and evaluated the famous integral
>
> Timing[Integrate[x^3 /(Exp[x]-1),{x,0,Infinity}]]
>
> It took 19.8 seconds to get the famous result Pi^4 / 15.
>
> Seems a bit long -- what might have been taking up the time?
It is not clear if you had already started up a kernel before
evaluating the integral.
Try it this way: first thing first evaluate
1+1
Then evaluate your integral.