Method test_polymul

numpy/polynomial/tests/test_polynomial.py:86–93

(self)

            assert_equal(poly.polymulx(ser), tgt)

    def test_polymul(self):
        for i in range(5):
            for j in range(5):
                msg = f"At i={i}, j={j}"
                tgt = np.zeros(i + j + 1)
                tgt[i + j] += 1
                res = poly.polymul([0]*i + [1], [0]*j + [1])
                assert_equal(trim(res), trim(tgt), err_msg=msg)

    def test_polydiv(self):
        # check zero division