多参数函数的scipy.misc.derivative

我会写一个简单的包装，类似

def partial_derivative(func, var=0, point=[]):    args = point[:]    def wraps(x):        args[var] = x        return func(*args)    return derivative(wraps, point[var], dx = 1e-6)

演示：

>>> partial_derivative(foo, 0, [3,1])6.0000000008386678>>> partial_derivative(foo, 1, [3,1])2.9999999995311555