Settings

Paper is the light theme, Blueprint the dark one. Auto follows your device.

Scales all text and spacing. Your browser’s own text size still applies on top.

Reduce makes figures snap to new values and turns off page and pen animations. System follows your device’s reduced-motion setting.

The course rounds half-up: working to 4 decimal places, answers to 2. “Answers only” shows the working at 2 places too. The calculation itself never changes.