MathGroup Archive: April 2009 [00038]

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Help to define linked domains for variables

To: mathgroup at smc.vnet.net
Subject: [mg98198] Help to define linked domains for variables
From: Shay Reboh <shayreboh at gmail.com>
Date: Thu, 2 Apr 2009 04:47:36 -0500 (EST)

I am a very basic user of Mathematica and I have found the following
problem.
I have a function where I need to define for the variable $B&E(B, $B&E!l(B and z
the following relations

$B&E(B = $B!](B1 if z < 0;
$B&E(B = 0 if z = 0;
$B&E(B = 1 if z > 0
$B&E!l(B = $B!](B1 if r $B!](B a < 0;
$B&E(B = 0 if r $B!](B a = 0;
$B&E(B = 1 if r $B!](B a > 0

Thanks in advance for any help

Shay

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