GeoGeobra profile some geogebra works.

netpad profile some works in my high school.

A book I participated in writing during my university. Though not interested in it now.

p5.js profile some online sketches from showing math.

Mathematica Stack Exchange

github social media

blog in notion

some fractals

some AUR packages

If you have any questions or suggestions, write to

Teacher Yu
badge: proud member of the 250KB Club