TI-92 Extracting vars from expressions
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TI-92 Extracting vars from expressions
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Subject: TI-92 Extracting vars from expressions
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From: Jeff Tyrrill <Jeff_Tyrrill@MSN.COM>
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Date: Mon, 25 Nov 1996 16:57:44 UT
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In-Reply-To: <>
In a user function I'm writing, the argument is an equation or expression, and
part of the function has to extract all the undefined variables (like x in
5x^2+x) from the equation or expression and put each one in a list. Is there a
way to do this without manually searching through the expression as a string
and looking for letters?
Thanks