BP神经网络算法的matlab代码 里面有仿真源码和程序运行的截图，程序有详细的注释-BP neural network algorithm matlab simulation source code inside shots and running, the program has detailed notes

梯度下降法的图形表示，里面有详细的中文注释，运行即可看到结果。-Gradient descent graphical representation, which the Chinese have detailed notes, you can see the results running.