A poem.

On endings, identity, and the illusion of choice.

If you are trying to kill me, I'll kill you.

Nobody could save me. Not even myself.

公司团建去了一趟古北水镇。

输出为 M×N、输入为 I×J 的矩阵函数，其导数是一个 M×N×I×J 的（广义）雅可比张量。

更高维的张量点乘也许难以直观地理解，但其实也只是一些乘法和加法而已。

Applying the same backpropagation technique to Word2vec's softmax cost.

Working through backpropagation for CS224n, one partial derivative at a time.

费孝通《乡土中国》《乡土重建》读书笔记。

NASM is the only cross-platform assembler. And it works with Xcode!

Reading The Language Instinct.

所有明知只有好好准备才能打赢比赛但是却不好好准备的人，都从来没有好好准备过比赛。

在美区 iTunes 租一部国内看不到的电影的全过程。

A poem in Chinese — CS jargon as everyday language.

A poem in Chinese.

为什么要有一个自己的网站。