Method test__sub__matrix

linear_algebra/src/test_linear_algebra.py:194–200

test for Matrix - operator

(self)

        assert str(a + b) == "|2,4,10|\n|4,8,10|\n|12,14,18|\n"

    def test__sub__matrix(self) -> None:
        """
        test for Matrix - operator
        """
        a = Matrix([[1, 2, 3], [2, 4, 5], [6, 7, 8]], 3, 3)
        b = Matrix([[1, 2, 7], [2, 4, 5], [6, 7, 10]], 3, 3)
        assert str(a - b) == "|0,0,-4|\n|0,0,0|\n|0,0,-2|\n"

    def test_square_zero_matrix(self) -> None:
        """