http://deeplearning.stanford.edu/wiki/index.php/Exercise:Vectorization。斯坦福深度学习的教程，练习2的代码-http://deeplearning.stanford.edu/wiki/index.php/Exercise:Vectorization. Stanford deep learning tutorials, exercises 2 code

UFLDL作业，以下作业均已完整做好，build deep network,vectorization,softmax,working with large images,pca。-UFLDL,build deep network,vectorization,softmax,working with large images,pca