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assume an integer

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22478] assume an integer
  • From: Peter Jay Salzman <covenant at dirac.org>
  • Date: Sun, 5 Mar 2000 00:24:13 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

hi all

is it possible to have Mathematica assume a variable is an integer?  i can't find an
example in the Mathematica book (book is for 3.0, but i'm using 4.0).

what i'm getting at is: 
Cos[m Pi] = (-1)^m
Sin[n Pi] =  0

etc.   thanks!
pete



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