702 of 1,000 players

Curve Sprint is unlocked. 298 more to head-to-head Battles.

Leagues

Ten players, one week. The top of each group moves up on Monday, and fewer go up the higher you climb.

This week ends in6d 17hResults and new groups at midnight UTC, Sunday into Monday.

Epsilon

Everyone starts small.

5 players, 1 group. Top 3 of each group go up, nobody drops.

The group

1 [0]ORANGe_piSTACHiO↑849pts
2 [0]Blasxtyy↑750pts
3 [0]lollipop↑750pts
above this line moves up
4 [0]Muraree575pts
5 [0]SnailLords13396pts

← Back to your league

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)