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MathGroup Archive 2002

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How build a ?TestFuntion that applied to a list gives only the elements that are function of x

  • To: mathgroup at smc.vnet.net
  • Subject: [mg32995] How build a ?TestFuntion that applied to a list gives only the elements that are function of x
  • From: "J. Guillermo Sanchez" <guillerm at usal.es>
  • Date: Sat, 23 Feb 2002 02:38:16 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

How build a ?TestFuntion that applied to a list give only the elements 
that are function of x

Example:

In[]:= {Sin[a x], b x, t, c r}/.?TestFuntion

gives

Out[] = {Sin[a x], b x}

Thanks

Guillermo Sanchez


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