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Re: Imaginary ...

• To: mathgroup at smc.vnet.net
• Subject: [mg2490] Re: [mg2430] Imaginary ...
• From: Jesus ROJO <jesroj at wmatem.eis.uva.es>
• Date: Wed, 15 Nov 1995 01:57:17 -0500

Hello,

Try  ComplexExpand. Start reading  ?ComplexExpand  at
the terminal. But be careful. For instance, if
	f:=a+I b
then
	In[]:= Sqrt[f*Conjugate[f]//ComplexExpand]
	Out[]= Sqtr[a^2+b^2]
but
	In[]:= Sqrt[f*Conjugate[f]]//ComplexExpand
	Out[]= Sqrt[(a+I b) Conjugate[a+I b]]

Sincerely,
			   Jesus ROJO
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