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MathGroup Archive 1997

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Re: mathematica question

  • To: mathgroup at
  • Subject: [mg9218] Re: [mg9199] mathematica question
  • From: seanross at
  • Date: Fri, 24 Oct 1997 01:00:32 -0400
  • Sender: owner-wri-mathgroup at

Tom wrote:
> Hello Mathematica users,
> I have a question that I hope someone has an answer for.  I think it
> should be simple but I cannot find a way to make it work.
> I have a set of functions that take no inputs, they are called q1[],
> q2[], q3[] and so on.
> How can I get Mathematica to run the correct function given a list of
> numbers as input.  IE, if I supply the list {1,4,7,8} I would want
> Mathematica to run the functions q1[], q4[], q7[] and q8[], assuming
> they were defined.
> I would appreciate any assistance you might have with this!!
> Sincerely,
> Tom De Vries

ToExpression[string] is the command you want.  You can use string
manipulation to make up the correct function name, then convert the
string to a mathematica expression.  Something like

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