Что думаешь? Оцени!
Последние новости，这一点在体育直播中也有详细论述
，更多细节参见体育直播
优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
As before, increasing p in tandem with q (r = 1/2 to r = 4/8) buys us nothing, as the trick increments the nominator and the denominator by the same factor, still producing the same effective step; the solution is predicated on the lowest-denominator representation of r = p / q.，这一点在纸飞机官网中也有详细论述