On Thu, Apr 4, 2013 at 10:21 AM, Neda <[email protected]> wrote:
>
> Hello
>
> Can we parametrize all solutions of the linear equations like
>
> x+2* y-2*z+w= -1
>
> x+y+z-w =2
>
> in sage?

var('x,y,z,w')
solve([x+2*y-2*z+w == -1, x+y+z-w==2], [x,y])


Did I just do your linear algebra homework?  :-)

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-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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