• eTechou PDF Planner has been open sourced!
  4/3/2022

• PDF Planner 2021 (for iPad + apple pencil)
  12/1/2021

• COVID19 Time-Dependent Distribution in Japan
  14/3/2020

• Proof without words: trigonometric differentiation
  10/3/2020

• LaTeX Typesetting Chinese Character and PinYin Box
  2/2/2020

• New Year and New Document
  13/1/2020

• Maxima cheat sheet
  8/3/2019

• Julia cheat sheet v1.0
  10/2/2019

• I Found Something Funny
  31/1/2019

• LaTeX Template for My Notes in 2018
  30/1/2018

• LaTeX math cheat sheet
  25/7/2017

• Personal Chatting Bot for Wechat
  2/10/2016

• First try of git-svn on CafeMol
  15/9/2016

• Typesetting Lyrics of Japanese/Chinese Songs with LuaTeX
  2/8/2016

• A Short Example of Using Ledger with Emacs Org-mode
  28/7/2016

• Install Dokuwiki + apache2 + php on macOS
  23/7/2016

• Vocabulary Builder Employing StarDict Dictionaries
  20/5/2016

• Deploying Pelican Blogs on VPS with Git
  26/4/2016

• Jupyter/IPython Notebook Theme and Chinese Fonts
  25/10/2015

• Local Network IRC Server + Web IRC Client + IRC Bot
  10/10/2015

• Chinese 12-Year-Cycle Animals as Org-mode Heading Icons
  27/9/2015

• A LaTeX Note Template
  19/11/2014