Great videos man. You covered the entire portion for my course this semester in a few small videos, which are explained better and have more illustrations than those of our college.

Great video. 👍👍👍 Thank you.

May be I getting it wrong but there may be a mistake in the Lemma proof. Proof says that all angles in flipped triangulation must be bigger. But it cannot be true as angle near S in non-flipped tri. is for sure bigger of any other angle in flipped. Also we try to maximize minimum angle (sort vector of angles in lexicographic order), so we do no need to prove that all angles bigger just that minimum angle is bigger

Great video series! What software do you use to make your slides interactive? Is it jupyter notebooks, Angular, or something else?