test_linalg.py 文件源码

def do(self, a, b):
        c = asarray(a)  # a might be a matrix
        s = linalg.svd(c, compute_uv=False)
        old_assert_almost_equal(
            s[..., 0] / s[..., -1], linalg.cond(a, 2), decimal=5)