Update 2013-01-13-lda-math-gamma-function.md (#221)
Update 2013-01-13-lda-math-gamma-function.md (#221)

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* 残留的一些细微问题

* CRLF -> LF?

cosname/cosx.org,JianqiaoWang/cosx.org,Lchiffon/cosx.org,tomatoiscoding/cosx.org,yixuan/cosx.org,fyears/cosx.org,yixuan/cosx.org,fyears/cosx.org,JianqiaoWang/cosx.org,fyears/cosx.org,cosname/cosx.org,yixuan/cosx.org,Lchiffon/cosx.org,hetong007/cosx.org,hetong007/cosx.org,hetong007/cosx.org,JianqiaoWang/cosx.org,tomatoiscoding/cosx.org,tomatoiscoding/cosx.org,cosname/cosx.org,Lchiffon/cosx.org