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Re: Using quad() for multidimensional integration

From: Vinayak Dutt
Subject: Re: Using quad() for multidimensional integration
Date: Thu, 17 Aug 95 08:14:27 CDT

Ted Harding writes:
#( Re Message From: Vinayak Dutt )
#Since posting my previous comment on the above, I ran my little test program
#    ( for  int_0^1  int_0^x  y dy dx )
#on matlab (an old version).
#The result, after a few seconds, was a stream of messages all like
#     Recursion level limit reached in quad. Singularity likely.
#and, when interrupted, it backed up through several layers of calls to
#This adds support to my suspicion that this problem may be due to running
#out of stack space.

 I think you might be right. I ran a simpler double integral which has a faster
convergence, and, it did work. So this might be a stack space problem.

 * vinayak dutt
 * ex-graduate student, ultrasound research
 * mayo graduate school, rochester mn
 * e-mail: address@hidden
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