Comment by clairity

not following the math is understandable since it only takes a little unfamiliarity to make math seem hard to understand.

but if you've studied linear systems a bit, the math is laid out really well for understanding and turning into practical applications (which seems to be the whole point of distill.pub).

many math articles, in contrast, seem to obfuscate the "why" and the "what for" and concentrate on the theory and derivation (e.g., many wikipedia math articles). that might be great for mathematical elegance (or cynically, oneupsmanship), but not so great for people trying to build things using that valuable knowledge.