BP神经网络用于函数拟合与模式识别，最小均方误差（MMSE）的算法，可实现对二维数据的聚类，有CDF三角函数曲线/三维曲线图，包含优化类的几个简单示例程序。- BP neural network function fitting and pattern recognition, Minimum mean square error (MMSE) algorithm, Can realize the two-dimensional data clustering, There CDF trigonometric curve/3D graphs, Optimization class contains several simple sample programs.