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MatchQ, silly question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg105087] MatchQ, silly question
  • From: janos <janostothmeister at gmail.com>
  • Date: Fri, 20 Nov 2009 06:40:26 -0500 (EST)

MatchQ[3 x^2, #] & /@ {3 x_^2,  3 x_^_, _ x_^_, _ _^_, _ (_^_), _ *
(_^_)}

dives False in the last cases. Why? The FullForm

Power[Blank[ ],Plus[1,Blank[ ]]]

contains Plus, why?

Thank you.

J=E1nos


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