MathGroup Archive 2001

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Re: Find variables in a very long expression?


In a message dated 2001/10/30 4:53:57 AM, jflanigan at netzero.net writes:

>I have a very long expression and I would like to find out what the
>variables in that expression are.
>
>How would I do that?
>

Union[Cases[expr, _Symbol?(!NumericQ[#]&), Infinity]]


Bob Hanlon
Chantilly, VA  USA


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