MathGroup Archive: December 2009 [00464]

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complex numbers

To: mathgroup at smc.vnet.net
Subject: [mg105904] complex numbers
From: Jon Joseph <josco.jon at gmail.com>
Date: Thu, 24 Dec 2009 00:16:32 -0500 (EST)

All: Something fundamental about complex number initialization I am 
failing to understand. I wish to define a complex number

	z=x+ I y where x and y are both reals. Can someone tell me the 
proper way to tell Mathematica that x, y are real so that Re[z] returns 
x and Im[z] returns y? Much appreciated, Jon.

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  - From: Murray Eisenberg <murray@math.umass.edu>

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