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MathGroup Archive 1997

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Re: MatchQ

  • To: mathgroup at
  • Subject: [mg8595] Re: [mg8542] MatchQ
  • From: mabi at (Marlies Brinksma)
  • Date: Tue, 9 Sep 1997 03:07:13 -0400
  • Sender: owner-wri-mathgroup at

> Hello,
> Can anybody explain me why 
> MatchQ[E^(a*I*b), E^(I*freq_)] gives False ???
> (while for instance MatchQ[E^(a*I*b), E^(a*freq_)] gives True)
> What patterns  should be used for expressions with I ?
> Many thanks,
>                 Raya Khanin

Hi Raya,

When I tried your input I got a different result:

MatchQ[E^(a*I*b), E^(I*freq_)]


Did you change the Attributes of the built-in function Times[]?

Best regards,

Marlies Brinksma

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