b1a427bb3849d998230ca8b8b1caf7fc3095d99e,liegroups/numpy.py,SO2,is_valid_matrix,#Any#Any#,29

Before Change

    @classmethod
    def is_valid_matrix(cls, mat):
        return mat.shape == (cls.dim, cls.dim) and \
            np.isclose(np.linalg.det(mat), 1.) and \
            np.allclose(mat.T.dot(mat), np.identity(cls.dim))

    @classmethod

After Change

        bottom_row = np.append(np.zeros(cls.dim - 1), 1.)

        return mat.shape == (cls.dim, cls.dim) and \
            np.array_equal(mat[cls.dim - 1, :], bottom_row) and \
            cls.RotationType.is_valid_matrix(mat[0:cls.dim - 1, 0:cls.dim - 1])

    @classmethod

Instances