MLPY/Lib/site-packages/sympy/testing/matrices.py

def allclose(A, B, rtol=1e-05, atol=1e-08):
    if len(A) != len(B):
        return False

    for x, y in zip(A, B):
        if abs(x-y) > atol + rtol * max(abs(x), abs(y)):
            return False
    return True