Hello
++++++++++++++++++++++++++++++++
x,y=var('x,y')
s = x*y2 + x*(-y2 - x2 + 1) + x3 - x
print simplify(s)
Answer :
2 2 2 3
x y + x (- y - x + 1) + x - x
+++++++++++++++++++++++++++++
I'm quite disappointed that Sage do not notice that s=0. Do I miss
something ?
Btw, the function simplify_full does not exist ... so I suppose that I
*do* miss something.
My version is extracted from the tar.gz downloaded from the website :
| Sage Version 3.4.1, Release Date: 2009-04-21 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
Should I install some additional proposed packages ?
http://www.sagemath.org/download-packages.html
Thanks
Laurent
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