

def factor_sidi(self, i):
    return ((((self.theta + self.n) - 1) * ((self.theta + self.n) - 2)) / self.ctx.mpf(((((self.theta + (2 * self.n)) - i) - 2) * (((self.theta + (2 * self.n)) - i) - 3))))

dataset/ETHPy150Open fredrik-johansson/mpmath/mpmath/calculus/extrapolation.py levin_class.factor_sidi/original