coursera上吴恩达老师讲的机器学习的实验一的代码，部分代码和其他人的不一样，比如for循环我直接用矩阵做(coursera on machine learning experiments Andrew Ng teacher talking about a code part of the code and not the same as others, such as for loop I do directly with the matrix)

吴恩达机器学习课程神经网络和机器学习作业及答案(coursera's machine learning answer)

吴恩达机器学习第一个编程练习,使用octave语言练习。(Coursea---meachine learning)