def myArrayEq(x, y, atol):
    """Determine if two numpy arrays of floating point numbers are equal.

    Args:
    x (numpy.ndarray): a numpy array
    y (numpy.ndarray): a numpy array
    atol (float): absolute tolerance for equality

    Returns:
    (bool) true if the two arrays are equal
    """
    return (
        (x[0] - y[0] < atol)
        and (x[0] - y[0] > -atol)
        and (x[1] - y[1] < atol)
        and (x[1] - y[1] > -atol)
        and (x[2] - y[2] < atol)
        and (x[2] - y[2] > -atol)
    )