David,

I'm forwarding your question to sage-support.  You should subscribe
if you haven't already:
    http://groups.google.com/group/sage-support

---------- Forwarded message ----------
From: David Stahl (PAVCO) <[EMAIL PROTECTED]>
Date: Jul 22, 2007 2:27 PM
Subject:
To: William Stein <[EMAIL PROTECTED]>




Hi William,

I used the groebner_basis() function of SAGE to solve for a system of
nonlinear equations.  My result is of the form:

c1 + c2*y + c3*x*y^2

I would like to substitute a value in for y and then solve for x but
can't figure out how to get SAGE to do this.  Do you have an example
you could email me?  Thank you.

David

-- 
William Stein
Associate Professor of Mathematics
University of Washington
http://www.williamstein.org

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