Updates:
Status: Fixed
Comment #16 on issue 2020 by mrock...@gmail.com: Symbols & Matrices
http://code.google.com/p/sympy/issues/detail?id=2020
Now that ImmutableMatrix is in I think we have covered all requests made in
this issue.
wanted
a = sympy.Symbol('a', commutative=False, shape=(3,1)) # works
got
x = MatrixSymbol('a', 3, 1)
wanted
eq1 = a-sympy.Matrix([c,0,0]) # unsupported operand type(s) for -: 'Symbol'
and 'Matrix'
got
a - ImmutableMatrix([c, 0, 0])
wanted
eq2 = sympy.sympify('transpose(a)*b')
got
a.T*b
wanted
eq2.subs({a:sympy.Matrix([c,0,0]),b: sympy.Matrix([0,2,0])})
got
eq2.subs({a:ImmutableMatrix([c,0,0), b: ImmutableMatrix([0,2,0])})
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