int-llm — the math foundation, drawn

These are the seed visualizations behind fp_math.h — the pure-integer Q16.48 math library at the core of int-llm. They were built first, to convince myself that transcendental constants and functions can be approximated deterministically with nothing but integers, shifts and adds. The library is what grew out of them; the LLM is what the library turned out to be good enough to run. Exploratory aids, not proofs — but they show what the math actually does.