Re: real function argument
- To: mathgroup at smc.vnet.net
- Subject: [mg73440] Re: [mg73399] real function argument
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 16 Feb 2007 01:06:23 -0500 (EST)
- Reply-to: hanlonr at cox.net
f[x_]:=Re[Cos[x]+I Sin[x]]; D[Simplify[f[x],Element[x, Reals]],x] -Sin[x] Bob Hanlon ---- bar at ANTYSPAM.ap.krakow.pl wrote: > 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