def test_01_complex(self):
        # Solve
        # [ 4 -j  2  0]     [2-j]
        # [ j  4 -j  2] X = [4-j]
        # [ 2  j  4 -j]     [4+j]
        # [ 0  2  j  4]     [2+j]
        #
        ab = array([[0.0, 0.0, 2.0, 2.0],
                    [-99, -1.0j, -1.0j, -1.0j],
                    [4.0, 4.0, 4.0, 4.0]])
        b = array([2-1.0j, 4.0-1j, 4+1j, 2+1j])
        x = solveh_banded(ab, b)
        assert_array_almost_equal(x, [0.0, 1.0, 1.0, 0.0])
dataset/ETHPy150Open scipy/scipy/scipy/linalg/tests/test_basic.py/TestSolveHBanded.test_01_complex/original