Python mpf_bernoulli示例

示例#1

文件： evalf.py 项目： hridog00/Proyecto

def evalf_bernoulli(expr, prec, options):
    arg = expr.args[0]
    if not arg.is_Integer:
        raise ValueError("Bernoulli number index must be an integer")
    n = int(arg)
    b = mpf_bernoulli(n, prec, rnd)
    if b == fzero:
        return None, None, None, None
    return b, None, prec, None

示例#2

文件： evalf.py 项目： arghdos/sympy

def evalf_bernoulli(expr, prec, options):
    arg = expr.args[0]
    if not arg.is_Integer:
        raise ValueError("Bernoulli number index must be an integer")
    n = int(arg)
    b = mpf_bernoulli(n, prec, rnd)
    if b == fzero:
        return None, None, None, None
    return b, None, prec, None