check inside a loop?
- To: mathgroup at smc.vnet.net
- Subject: [mg80736] check inside a loop?
- From: "Jeremy Price" <cfgauss at u.washington.edu>
- Date: Thu, 30 Aug 2007 23:41:07 -0400 (EDT)
- Organization: University of Washington
I have a large loop that is ndsolving/nintegrating a bunch of things, and a
lot of the results give me various errors due to the equations not being
very nice. I'd like to have a way to check what values of my paramaters are
causing the errors, but I can't find a way to do that inside a loop.
For example, if I have something like,
f[x_] = 1/Sin[2 pi x]
For[ i=1, i < 1000, i++,
I'm going to get a lot of "Power::infy: Infinite expression 1/0
encountered." errors. I'd like to see what values of i these occur at.
I've tried something like
For[ i=1, i<1000, i++,
Check[ f[i] , i]
But this just returns "Power::infy: Infinite expression 1/0 encountered."
errors without the i vaule, which is different than I get by evaluating
Power::infy: Infinite expression 1/0 encountered.
Is there any way I can get it to return the index that the error occured at
for every error that occurs inside of the loop?
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