[Axiom-developer] [AxiomProblems] Pattern Matching

[anonymous]

Subject: 
              [Axiom-developer] [Q] Function for testing for a part of the 
output?
         Date: 
              Thu, 10 Feb 2005 21:35:30 +0200
        From: 
              Vladimir Bondarenko <address@hidden>
 Organization: 
              Cyber Tester, LLC
           To: 
              address@hidden




Good Day,

Say, I have  D(sin(z)^2, z) and the output is  2cos(z)sin(z)

What is the easiest way to see, if the output has sin(z) ?
Say, something like

-> present?(sin(z), D(sin(z)^2, z))
true


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