stroud_secrest.py 文件源码

def x(plus_minus):
    degree = 7

    sqrt15 = sqrt(15)

    r = sqrt((15 + plus_minus * sqrt15) / 4)
    s = sqrt((6 - plus_minus * sqrt15) / 2)
    t = sqrt((9 + plus_minus * 2*sqrt15) / 2)
    A = (720 + plus_minus * 8*sqrt15) / 2205
    B = (270 - plus_minus * 46*sqrt15) / 15435
    C = (162 + plus_minus * 41*sqrt15) / 6174
    D = (783 - plus_minus * 202*sqrt15) / 24696

    data = [
        (A, numpy.array([[0, 0, 0]])),
        (B, fsd(3, (r, 1))),
        (C, fsd(3, (s, 2))),
        (D, pm(3, t)),
        ]
    return degree, data