MathGroup Archive 1995

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Imaginary ...




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
--
---------------------------------------
|  Jesus ROJO                         |
|  Dpto. de Matematica Aplicada       |
|  E.T.S. de Ingenieros Industriales  |
|  Paseo del Cauce s/n                |
|  47011 VALLADOLID, Spain            |
|  Phone : 34 - 83 - 42 33 90         |
|  Fax   : 34 - 83 - 42 34 06         |
|  e-mail: jesroj at wmatem.eis.uva.es   |
---------------------------------------


  • Prev by Date: Re: Methods of solving nonlinear equation
  • Next by Date: Re: turn off symbols in MultipleListPlot?
  • Previous by thread: Re: Methods of solving nonlinear equation
  • Next by thread: Re: Imaginary ...