Methodology and metallic-rs conventions for implementing math-library functions from scratch in Rust — exp, log, sin, pow, erf, and friends. Use when adding or improving a function under src/f32_/ or src/f64_/, doing argument reduction, generating minimax/Remez polynomial or rational coefficients (rminimax/Sollya, Remez.jl), choosing a polynomial evaluation scheme, applying error-free transforms and compensated arithmetic (true FMA available), making a function correctly rounded (≤ 0.5 ulp; Table Maker's Dilemma, CORE-MATH, RLIBM), or benchmarking and optimizing a function's performance against CORE-MATH (criterion benches, Ziv fallback rates, branchless rewrites, issue #5). Covers f32 and f64.
2026-07-11