https://my.oschina.net/iyinghui/blog/1923083

https://www.jianshu.com/p/6d6e629df051

1. http://blog.sina.com.cn/s/blog_aec06aac01013m5g.html  理解SerDes 之一

2. https://www.xilinx.com/publications/events/designcon/2017/112gbps-serial-transmission-over-copperpam4-vs-pam8-slides.pdf   112G SerDes

https://www.cnblogs.com/charlotte77/p/5629865.html

BP神经网络(反向传播)详细推导 _ Cowry 

https://cowry5.com/2018/05/21/180521-BP%E7%A5%9E%E7%BB%8F%E7%BD%91%E7%BB%9C(%E5%8F%8D%E5%90%91%E4%BC%A0%E6%92%AD)%E8%AF%A6%E7%BB%86%E6%8E%A8%E5%AF%BC/

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