Duration & Convexity, Derived

Deep dive: where duration comes from, and where it fails.

"Duration is the slope; convexity is the curve it misses."

A short lesson, then a quiz. ❤️×3 — a wrong answer costs a heart; finish with at least one left and the level is yours. Lose all three and you'll have to try again. Replay any time — XP and cleared levels are never lost.