asymptote
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You approach it and never arrive.

Asymptote is a free online calculus game: a calculus practice game for derivatives, limits and integrals, with typed answers and a live mode for class. Newest guide: Derivatives of Trig Functions: Table & Practice Problems.

Guides with practice problems: Chain rule · U-substitution · Implicit differentiation · Integration by parts · Product rule · Quotient rule · Power rule · L'Hôpital's rule · Related rates
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ZZdx

[2+]Natural🇬🇧

1,414 / 4,000 XP into level 2. Playing since October 2026.

Leaderboard positions

  • Levels#41
  • Sprint#831
  • Diverge#139
  • Curve Sprint-
  • Squiggles#30

League

Delta

1 promotion · 1 week played

ZZdx’s Squiggles

912

Area Under the Curve · 11/36 collected · 10 evolved · 3 trophies

8day streak, best of 8.

Badges

9 of 57
✎∿≡△Σ⌛↑∅⊚

Stats

Problems solved
190
Time played
2h 46m

The rest is kept private.

A picture, ready for a story or a post. No link needed.

think you can beat ZZdx?
∬ e-lephant
∫
∫
∬ e-lephantNever forgets. Mostly it remembers 2.71828.
Double integralStage 2 of 5
∬
∬ e-lephantstage 2 of 5
Power Tower
Power TowerEach one is the other one’s exponent. Nobody wants to be at the bottom.
ExponentialNo. 31 of 36
Power Towerstage 0 of 5
∬ Integral Eel
∫∫
∬ Integral EelSpends all day adding up tiny slices. Has not finished yet.
Double integralStage 2 of 5
∬
∬ Integral Eelstage 2 of 5

Evolution

16 / 180 stages

10 evolved, none all the way yet. Stage 5 is right there. Just saying.

Show every pack
  • Limits1/12
  • Derivatives0/12
  • Integrals10/1210 evolved

Most evolved

  • e-lephant

    ∬ e-lephant

    Stage 2 of 5 · Area 300 (was 200)
  • Integral Eel

    ∬ Integral Eel

    Stage 2 of 5 · Area 90 (was 60)
  • Natural Log Owl

    ∬ Natural Log Owl

    Stage 2 of 5 · Area 90 (was 60)
  • Mean Bean

    ∬ Mean Bean

    Stage 2 of 5 · Area 15 (was 10)
See all 10 evolvedShow fewer
  • e-lephant

    ∬ e-lephant

    Stage 2 of 5 · Area 300 (was 200)
  • Integral Eel

    ∬ Integral Eel

3 trophies · every card, up close

Stage 2 of 5 · Area 90 (was 60)
  • Natural Log Owl

    ∬ Natural Log Owl

    Stage 2 of 5 · Area 90 (was 60)
  • Mean Bean

    ∬ Mean Bean

    Stage 2 of 5 · Area 15 (was 10)
  • Plus C

    ∬ Plus C

    Stage 2 of 5 · Area 15 (was 10)
  • Whole Number

    ∬ Whole Number

    Stage 2 of 5 · Area 15 (was 10)
  • Cosine Kitten

    ∫ Cosine Kitten

    Stage 1 of 5 · Area 30 (was 25)
  • Parabola Pup

    ∫ Parabola Pup

    Stage 1 of 5 · Area 30 (was 25)
  • Ratio Rabbit

    ∫ Ratio Rabbit

    Stage 1 of 5 · Area 30 (was 25)
  • Square Root

    ∫ Square Root

    Stage 1 of 5 · Area 12 (was 10)