Re: Wolfram, meet Stefan and Boltzmann
- To: mathgroup at smc.vnet.net
- Subject: [mg117468] Re: Wolfram, meet Stefan and Boltzmann
- From: AES <siegman at stanford.edu>
- Date: Sat, 19 Mar 2011 05:21:02 -0500 (EST)
- References: <ili6f5$kk2$1@smc.vnet.net> <ilksdj$6b2$1@smc.vnet.net> <ilvev1$eur$1@smc.vnet.net>
In article <ilvev1$eur$1 at smc.vnet.net>, Uayeb <uayebswinburne at gmail.com> wrote: > Unless I've missed it, AES has not commented on whether subsequent > evaluations of the integral are any faster, or if this happens > everytime s/he restarts the kernal, which might be more interesting. 1) I thought I noted in an early post that subsequent evaluations are essentially instantaneous -- in any event they are. 2) I suppose I'm "restarting the kernel", but in mac terminology what I actually do to produce this -- and it seems to be totally repeatable -- is to Quit Mathematica, then restart it, either by clicking the Mathematica icon in the Doc, or dbl-clicking the test notebook. 3) Most recently I Quit and restarted Mathematica, typed in three cells containing 1+1, then the integral of x / (e^x - 1), then the integral of x^3 / (e^x - 1), then selected all three cells (Cmd-A), then evaluated. First cell took negligible time; second cell took 5 seconds; third cell took the standard 19 seconds. What can I say? -- that's what I see happen, and a few others apparently do also.