What did you use to draw the diagram?

[varuna82]

Great work! Your diagrams are simple and clean. Could you please share tool you used to create the diagrams and the PDFs.

[amiltonwong]

Hi, @shervinea , I'm also interested in how you draw such a concise diagram. Did you use Powerpoint to draw them? Or other tools?

THX!

[jason-morgan]

It appears to be LaTeX + TikZ.