Squiggles

Every game you play earns coins. Coins open packs. Packs hold Squiggles - 36 of them, from a humble Constant to the one-in-ten-thousand Asymptotic.

Your first packs are free

Make an account and 100 coins are waiting. That’s 5 packs, straight away.

Constant60%

Linear26%

Polynomial10%

Exponential3.49%

Transcendental0.5%

Asymptotic0.01%

Today's problem

\frac{d}{d x} [- 4 x - \frac{5}{x ^{2}}]

The hard one · double XP

For f (x, y) = 4 x^{2} + 2 x y^{2} - 11 y^{2}, find f_{xx} f_{y y} - (f_{x y})^{2} at (0, 2)