useful for learning the algorithm for extraction of the system when write the code in back propagation int the system-useful for learning the algorithm for extraction of the system when write the code in back propagation int the system

包含优化类的几个简单示例程序，用于时频分析算法，是一种双隐层反向传播神经网络。- Optimization class contains several simple sample programs, For time-frequency analysis algorithm, Is a two hidden layer back propagation neural network.