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  • Binary, Hanoi and Sierpinski, part 1

  • Euler's Formula and Graph Duality

  • Euler's formula with introductory group theory

  • Fractal charm: Space filling curves

  • Fractals are not self-similar

  • Hilbert's Curve, and the usefulness of infinite results in a finite world

  • How to count to 1000 on two hands

  • Limits | Chapter 7, Essence of calculus

  • Linear transformations and matrices | Essence of linear algebra, chapter 3

  • Pi hiding in prime regularities

  • Snell's law proof using springs

  • Tattoos on Math

  • The Brachistochrone, with Steven Strogatz

  • Triangle of Power

  • Understanding e to the pi i

  • Visualizing the chain rule and product rule | Chapter 4, Essence of calculus

  • What does it feel like to invent math?

  • Who cares about topology? (inscribed rectangle problem)