Thanks. I should check for rat* before I post.
Rich
------------Original Message------------
From: "Stavros Macrakis" <macrakis at alum.mit.edu>
To: "Richard Hennessy" <rvh2007 at comcast.net>
Cc: "Maxima List" <maxima at math.utexas.edu>
Date: Tue, Sep-2-2008 9:08 PM
Subject: Re: [Maxima] subst problems
Subst only substitutes for exact matches of expression subtrees. In your example, the subtree is 2*m*k = "*"(2,m,k), so m*k or 2*m or 2*k will not match it.
ratsubst is probably what you want.
-s
On Tue, Sep 2, 2008 at 9:03 PM, Richard Hennessy <rvh2007 at comcast.net> wrote:
Does anyone know a better command than subst for changing variables in expressions not containing integrate? I can't get subst to work right sometimes.
(%i1) 2*p+2*m*k=y$
(%i2) subst(p, m*k);
(%o2) 2*p+2*m*k=y
It has no affect.
Rich
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