LaTeX
On the TutorEagle Smart Courses page, there's a tutorial on how to use [katex] LaTeX [/katex]. The easiest way to practice is to download Notion, it's a note-taking app that allows you to write your notes for your subjects at school, but the best thing about it is that it supports LaTeX so you can write any equations you want!
The ATP equations in the previous lesson use LaTeX!
Anyway, enough of that - back to Biology!