Re: Wolfram, meet Stefan and Boltzmann
- To: mathgroup at smc.vnet.net
- Subject: [mg117310] Re: Wolfram, meet Stefan and Boltzmann
- From: "Emilio Martin-Serrano" <emartinserrano at telefonica.net>
- Date: Mon, 14 Mar 2011 06:59:07 -0500 (EST)
On my Intel i5, 3.2 GHz (4 Gb Ram)
Timing[Integrate[x^3/(Exp[x] - 1), {x, 0, Infinity}]]
{1.809, \[Pi]^4/15}
-----Mensaje original-----
De: DrMajorBob [mailto:btreat1 at austin.rr.com]
Enviado el: lunes, 14 de marzo de 2011 12:00
Para: mathgroup at smc.vnet.net
Asunto: [mg117294] Re: Wolfram, meet Stefan and Boltzmann
On my 2.8 GHz 3-yr-old core duo iMac:
Timing[Integrate[x^3/(Exp[x] - 1), {x, 0, Infinity}]]
{2.02204, \[Pi]^4/15}
Bobby
On Sun, 13 Mar 2011 05:26:09 -0500, Murray Eisenberg <murray at math.umass.edu>
wrote:
> With Mathematica 8.0.1 on a MacBook (not Pro) with OS X 10.6.6, 2.26
> GHz Core 2 Duo, 2 GB RAM, I get timing of 2.52093 for the same thing.
>
> With Mathematica 8.0.1 on a white-box Windows XP Pro PC, 3.0 GHz Core
> 2 Duo E6850, 4 GB RAM (with the usual ~3 GB, only, available to
> Windows XP), I get timing of 1.656 for the same thing.
>
> On 3/12/2011 5:10 AM, AES wrote:
>> No complaints here, just curious:
>>
>> 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?
>>
>
--
DrMajorBob at yahoo.com