Adaptive Mathematics Training Engine
The gap between AMC 8 and IMO,
measured and closed.
Mathpex measures your problem-solving ability from AMC 8 through the IMO and serves the exact problems that move it forward. It schedules spaced reviews so nothing slips, targets your weakest areas, and runs full timed simulations of real past contests — keyboard-driven and usable offline.
Start training Keyboard-first. Dark by default. Zero distractions.
01
Psychometric modeling
Every attempt updates a Rasch (1PL) ability estimate. Difficulty is calibrated from AMC through IMO on a single scale.
02
Adaptive recommendation
Problems are selected by Fisher information at your ability, blended with SM- review urgency, weakness targeting, and novelty expansion.
03
Historical simulation
Full timed simulations of past contests — AMC, AIME, USA(J)MO, IMO — with navigator, review flags, and a final submission workflow.