Updates:
Status: Valid
Labels: -0.7.2 Priority-Medium Type-Defect
Comment #1 on issue 3887 by [email protected]: sympy 0.7.2 hangs when
trying to solve a simple algebraic equation
http://code.google.com/p/sympy/issues/detail?id=3887
There were two changes here. At this commit
commit 35c02dc7f90201831ce4c05d8e5897082426644e
Author: Chris Smith <[email protected]>
Date: Tue Oct 11 20:29:56 2011 +0545
clean up testing of solutions in _solve
It started returning [] instead of the solution. Then, at this commit
commit 28f5e513a7b964422bdafe3de55d6342b39b01c5
Author: Chris Smith <[email protected]>
Date: Fri Oct 14 13:08:25 2011 +0545
2236 handle Float-failing systems and "infinite solutions" failure
When a system of nonlinear equations has cross terms,
solve_poly_system
may hae problems, so add such equations to the failed list early on.
Also, since Floats often cause problems, change these to Rational
by default (see issue 2384).
it started hanging.
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