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src/s/y/sympy-0.7.5/sympy/matrices/expressions/tests/test_matmul.py   sympy(Download)
from sympy.core import I, symbols
from sympy.functions import adjoint, transpose
from sympy.matrices import Identity, Inverse, Matrix, MatrixSymbol, ZeroMatrix
from sympy.matrices.expressions import Adjoint, Transpose, det
from sympy.matrices.expressions.matmul import (factor_in_front, remove_ids,
def test_xxinv():
    assert xxinv(MatMul(D, Inverse(D), D, evaluate=False)) == \
                 MatMul(Identity(n), D, evaluate=False)
 
def test_any_zeros():

src/s/y/sympy-HEAD/sympy/matrices/expressions/tests/test_matmul.py   sympy(Download)
from sympy.core import I, symbols
from sympy.functions import adjoint, transpose
from sympy.matrices import Identity, Inverse, Matrix, MatrixSymbol, ZeroMatrix
from sympy.matrices.expressions import Adjoint, Transpose, det
from sympy.matrices.expressions.matmul import (factor_in_front, remove_ids,
def test_xxinv():
    assert xxinv(MatMul(D, Inverse(D), D, evaluate=False)) == \
                 MatMul(Identity(n), D, evaluate=False)
 
def test_any_zeros():