def test_MatMul_kind():
M = Matrix([[1, 2], [3, 4]])
assert MatMul(2, M).kind is MatrixKind(NumberKind)
assert MatMul(comm_x, M).kind is MatrixKind(NumberKind)
def test_Derivative_kind():
A = MatrixSymbol('A', 2, 2)
assert Derivative(comm_x, comm_x).kind is NumberKind
assert Derivative(A, comm_x).kind is MatrixKind(NumberKind)
def test_Matrix_kind():
classes = (Matrix, SparseMatrix, ImmutableMatrix, ImmutableSparseMatrix)
for cls in classes:
m = cls.zeros(3, 2)
assert m.kind is MatrixKind(NumberKind)
def test_Integral_kind():
A = MatrixSymbol('A', 2, 2)
assert Integral(comm_x, comm_x).kind is NumberKind
assert Integral(A, comm_x).kind is MatrixKind(NumberKind)