Hello,
Currently I am dealing with common subexpressions of a matrix.
In [1]: from sympy import *
In [2]: from sympy.abc import *
In [3]: M = Matrix([a**2 + b, a**2 + b+ c])
In [4]: v1, v2 = cse(M)
In [5]: type(v2)
Out[5]: <type 'list'>
My question is: wouldn't it be more intuitive if v2 is a matrix with
the same shape as M? Of course, one could convert v2 easily but it would
be more convenient without this step and I see no reason why a list
should be returned if a Matrix was passed.
Best regards,
Bastian.
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