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MathGroup Archive 2007

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real function argument

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73399] real function argument
  • From: bar at ANTYSPAM.ap.krakow.pl
  • Date: Thu, 15 Feb 2007 05:04:24 -0500 (EST)
  • Organization: Akademia Pedagogiczna w Krakowie

Hi, 
I have a problrm with defining real argument

In:   f[x_]:=Re[Cos[x]+I Sin[x]]
	f'[x]

Out:  -Cos[x] Im'[x]-Sin[x]Re'[x]

In: FullSimplify[f'[x],Element[x,Reals]] 
gives the same out

Any suggestions ?

Regards, Olaf



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