利用BP网络实现异或功能，对输入矢量进行分类，源程序-BP networks using XOR function to classify the input vector, source code

模式识别作业-自编的BP神经网络判断异或的matlab源代码，每一步都有详细说明。并有详细的结果输出。-Pattern recognition operations- the BP neural network to determine self XOR the matlab source code, detailed descr iption of each step. And a detailed results output.