[avidthinker]

Sorry about that. I tried to introduce the necessary concepts starting from zero, or I thought I did.

We devs (take back that "just" :) ) deal with much harder stuff when we build complex APIs, so the problem must be at the syntactic level. To us devs, math may look like an antipattern, with all the short names and operator overloading.

But that's unavoidable, unfortunately. It's normal to spend hours or more on a single concept until it clicks. I'd say don't give up, but I understand one's time is valuable, and the return might not be high enough to justify the cost.