Here a list of multiple useful resources and links.
# Mathematics
* [Useful inequalities](https://lkozma.net/inequalities_cheat_sheet/ineq.pdf) (Many thanks to László Kozma.)
* Geometric Algebra for CGI, Vision and Engineering: [BiVector](https://bivector.net/)
* Commutative Diagram Editor: [Quiver](https://github.com/varkor/quiver)
# Web 3.0
- Excellent Solidity, JS and Chainlink integration course, from Patrick Collins: https://www.youtube.com/watch?v=gyMwXuJrbJQ
- List of all Ethereum Improvment Proposals (EIPs): https://eips.ethereum.org/all
# $\LaTeX$
* [Overleaf documentation](https://www.overleaf.com/learn);
* [The Not So Short Introduction to $\LaTeX$ $2_\epsilon$](http://ctan.mirror.colo-serv.net/info/lshort/english/lshort.pdf), by Tobias Oetiker;
* [Detexify](http://detexify.kirelabs.org/classify.html), to easily find the $\LaTeX$ symbol you're after.
# Markdown
* [Markdown & YAML cheatsheet](https://learn-the-web.algonquindesign.ca/topics/markdown-yaml-cheat-sheet/)
# Open Databases
* [United Nation open database](https://data.un.org/)
* [ImageNET](http://image-net.org/)
* [PASCAL-Context database](https://www.cs.stanford.edu/~roozbeh/pascal-context/)
# Food for thoughts
* [How to think for yourself](http://paulgraham.com/think.html), by Paul Graham