stroud.py 文件源码

def _gen4_1():
    pts = 2 * sqrt(5) * numpy.array([
        [cos(2*i*pi/5) for i in range(5)],
        [sin(2*i*pi/5) for i in range(5)],
        ]).T
    data = [
        (fr(7, 10), numpy.array([[0, 0]])),
        (fr(3, 50), pts),
        ]
    return 4, data


# The boolean tells whether the factor 2*pi is already in the weights