Groups > comp.soft-sys.math.mathematica > #2054

Re: Please Help Eliminate My Ignorance

From	David Skulsky <edskulsky@gmail.com>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Re: Please Help Eliminate My Ignorance
Date	2011-05-03 09:46 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<ipoiu8$g6m$1@smc.vnet.net> (permalink)

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I believe the problem with the second case is that the definition of test[] ends after the x=1; statement.  Mathematica subsequently processes Append[p,p[[4]]]; separately.  Since p hasn't been defined, it generates an error.  To fix the problem, use (for example) parenthesis:

test[p_]:=(x=1;Append[p,p[[4]]]);

David

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Re: Please Help Eliminate My Ignorance David Skulsky <edskulsky@gmail.com> - 2011-05-03 09:46 +0000

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