how long is a long evaluation?
- To: mathgroup at smc.vnet.net
- Subject: [mg19452] how long is a long evaluation?
- From: psalzman at landau.ucdavis.edu
- Date: Wed, 25 Aug 1999 01:25:19 -0400
- Sender: owner-wri-mathgroup at wolfram.com
i have a triple integral of a gaussian and a bunch of step functions of 4
variables. the expression is not that difficult, but it's not exactly 2+2
last night i started Mathematica on it. went to bed 4 hours later and when i looked
in the morning, it had reported "out of memory" (i have 96MB).
next i tried doing the integral with only one of the step functions to see
if that sped things up. so far it's been 4 hours and Mathematica is still plugging
i'm beginning to suspect that the way i've entered the integral is wrong.
i asked the department "mathematica guru" but he had no words of wisdom for
1- is there a way of telling if Mathematica is still plugging away or is just hung
in some kind infinite loop? can i see what Mathematica is working on at any given
moment? what is a reasonable maximum time for a difficult symbolic triple
integral? has anyone had something like this that ran for more than 4
hours? (dual PII/266)
2- would someone be kind enough to look at this notebook? it's 4 cells
long (so it's terribly short) and i'm sure if there's a mistake, it will be
glaring to the trained eye.
my *sincerest* thanks to anyone who can help.
Prev by Date:
Re: Any examples of FEA in Mathematica?
Next by Date:
Word wrap doesn't happen
Previous by thread:
Re: Mathematica on linux help and Mathematica returns wrong integral result
Next by thread:
Re: how long is a long evaluation?