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From: "Santiago Mazuelas" <mazuyo@hotmail.com>
Newsgroups: comp.soft-sys.matlab
Subject: linear regression with a nonlinear constraint
Date: Tue, 11 Mar 2008 21:22:02 +0000 (UTC)
Organization: Universidad de Valladolid
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I have a linear regression problem in which the variables 
X,Y,Z are related by
 
Z=aX+bY+c

but a I have the nonlinear constraint c=a^2+b^2

Anybody can tell me how to solve this problem?