1.matplotlib
http://www.cnblogs.com/TensorSense/p/6802280.html
https://wenku.baidu.com/view/e1c15c9db14e852458fb5759.html
http://www.cnblogs.com/zhizhan/p/5615947.html
2.Numpy
http://www.cnblogs.com/TensorSense/p/6795995.html