优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
https://feedx.site，更多细节参见heLLoword翻译官方下载
，详情可参考旺商聊官方下载
The last decade hasn’t been smooth. Brewster rattles off challenges: tariffs on equipment and consumables sourced from China, Europe, Mexico, and Canada; price hikes on vinyl and paper; labor shortages; and SBA lending issues layered on top of the whiplash of COVID, when only “necessary businesses” were allowed to stay open.
80386 Barrel Shifter →。关于这个话题，夫子提供了深入分析