Updates:
Status: WontFix
Comment #6 on issue 2343 by smi...@gmail.com: as_poly returns None
http://code.google.com/p/sympy/issues/detail?id=2343
There is nothing to fix. Issue 2346 hs been resolved and the problem above
can be solved by making sure that equations are instantiated with local
variables:
>>> e1=Ellipse((1,1),2,3)
>>> e2=Ellipse((2,3),1,4)
>>> q1=e1.equation()
>>> q2=e2.equation()
>>> solve([q1,q2],[x,y]) == None
True
>>> q1=e1.equation(x,y)
>>> q2=e2.equation(x,y)
>>> solve([q1,q2],[x,y]) == None
False
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