test_math_tools.py 文件源码

def test_incomplete_gamma_sum(self):
        """Test if the sum of lower and upper incomplete gamma functions correctly produce the
        gamma function"""

        rand = Random(372924)
        for _ in range(10):
            a, x = rand.random() * 10, rand.random() * 10
            l = incomplete_gamma_lower(a, x)
            r = incomplete_gamma_upper(a, x)
            g = gamma(a)
            self.assertAlmostEqual(l + r, g, 10)