日: 2017年2月19日

http://qiita.com/PonDad/items/6f9e6d9397951cadc6be?utm_content=buffer13db2&utm_medium=social&utm_sou […]

https://handong1587.github.io/deep_learning/2015/10/09/dl-app.html

http://sploid.gizmodo.com/take-a-quick-tour-of-the-mind-boggling-universe-of-math-1792041367