I made a pdf file for taking notes and making plans (手帳 in Japanese) with LaTeX.

I made a gif showing COVID19 infection distribution changes in Japan. Nothing new, just a showcase with python.

I recently got this idea that we can show all the basic trigonometric functions and the derivatives in one figure. So I spent some time to plot it with LaTeX.

This is the beginning of teaching my daughter Chinese characters.

Another LaTeX template for this years documentation.

Cheat Sheet for Maxima v5.42.2.

I made some figures on what we are doing these days. But I cannot tell too much details.

Cheat Sheet for Julia v1.0.3.

Surprisingly I encountered this interesting computer language.

Simulation of coarse-grained protein in explicit water.