使用matlab编写的BP神经网络的算法，使用单隐层的网络，其中包括一个实例文件，对20个数据作分类。-Prepared using matlab algorithm BP neural network, using a single hidden layer networks, including an instance of the file, the data for 20 categories.

BP神经网络主要用于函数拟合与模式分类Matlab的示例程序(BP neural network is mainly used for function fitting and pattern classification example of Matlab program)