def __new__(cls, mat, **kwargs):
if not mat.is_Matrix:
return mat**(-1)
try:
return mat.eval_inverse(**kwargs)
except (AttributeError, NotImplementedError):
pass
if hasattr(mat, 'inv'):
return mat.inv()
if mat.is_Inverse:
return mat.arg
if mat.is_Identity:
return mat
if not mat.is_square:
raise ShapeError("Inverse of non-square matrix %s" % mat)
if mat.is_Mul:
try:
return MatMul(*[Inverse(arg) for arg in mat.args[::-1]])
except ShapeError:
pass
return MatPow.__new__(cls, mat, -1)
def __new__(cls, mat, **kwargs):
if not mat.is_Matrix:
return mat ** (-1)
try:
return mat.eval_inverse(**kwargs)
except (AttributeError, NotImplementedError):
pass
if hasattr(mat, "inv"):
return mat.inv()
if mat.is_Inverse:
return mat.arg
if mat.is_Identity:
return mat
if not mat.is_square:
raise ShapeError("Inverse of non-square matrix %s" % mat)
if mat.is_Mul:
try:
return MatMul(*[Inverse(arg) for arg in mat.args[::-1]])
except ShapeError:
pass
return MatPow.__new__(cls, mat, -1)
def __new__(cls, mat, **kwargs):
if not mat.is_Matrix:
return mat**(-1)
if not mat.is_square:
raise ShapeError("Inverse of non-square matrix %s" % mat)
try:
return mat._eval_inverse(**kwargs)
except (AttributeError, NotImplementedError):
return MatPow.__new__(cls, mat, -1)
def __new__(cls, mat, **kwargs):
if not mat.is_Matrix:
return mat**(-1)
if not mat.is_square:
raise ShapeError("Inverse of non-square matrix %s"%mat)
try:
return mat._eval_inverse(**kwargs)
except (AttributeError, NotImplementedError):
return MatPow.__new__(cls, mat, -1)
