经典的pca算法，利用c++写的，值得一看-Classic pca algorithm using c++ to write, and worth a visit

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178个经典c语言源代码+算法大全 还有经典C程序100例 学习程序设计的很好的参考-178 classic c language source code+ algorithm Daquan There are 100 cases of classic C program Good reference for learning program design