🕹️ Practice arcade

Extra games, not extra homework — timed sprints, survival runs that end when your lives run out, and mastery drills built from the same skills Advanced Linear Algebra teaches.

🎯 Mastery

No clock — just get N in a row.

⚖️ Weighted Inner Product Mastery

Compute a weighted dot product, then judge whether the weights still give a valid inner product — five in a row, no clock.