Calculus Cheat Sheet
A joke cheat sheet of calculus symbols read as pictures: Δ points up, ∇ down, ∞ is cross-eyes, Σ is a sideways M.
Use this cartoon
Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2022-01-01-calculus-cheat-sheet/ (CC BY-NC 4.0)Transcript
[Title] "Calculus Cheat Sheet" (Symbol / Name / Meaning)
Δ delta: "hey, look up there" · ∇ nabla: "hey, look down there" · □ Halmos box: "hey, look nowhere, nowhere at all, for mathematical objects are empty abstractions, devoid of actual referents" · Σ sigma: iM (an M that has been rotated 90° counterclockwise) · ∞ cross-eyes: "wow, what a big number" · ∫ integral: "the sum of infinitely many infinitely small things*" (*sorry, the integral symbol is too beautiful to sully with a joke)