Four core LP topics plus a build-your-own solver, all computed live in Winston row-0 conventions and exact fractions. Runs fully offline. Work each problem by hand first, then type your answer and step through to see exactly where it agrees or breaks.
Solver verified against Giapetto · Dakota (z=280) · Bevco (z=25 & infeasible) · Winston Ex 4.6 (z=−12). Same row-0 Big-M logic as the console solvers in the solvers folder.