Status: Accepted
Owner: [email protected]
Labels: Type-Defect Priority-Medium
New issue 2392 by [email protected]: Inconsistent solve behavior
http://code.google.com/p/sympy/issues/detail?id=2392
When solving a system of equations with variables with arguments the
response is not consistent with that obtained with regular symbols
In [1]: solve([x+y+z+t,x+y],x,y,z,t)
Out[1]: {x: -y, z: -t}
In [2]: a = Symbol("a")
In [3]: solve([a(0, 0) + a(0, 1) + a(1, 0) + a(1, 1), -a(1, 0) - a(1, 1)],
a(0, 0) , a(0, 1) , a(1, 0) , a(1, 1))
Out[3]: {a(0, 0): -F₁, a(1, 0): -F₃}
Where F1 and F3 are dummy Symbols
The expected result would be
{a(0, 0): -a(0,1), a(1, 0): -a(1,1)}
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