origami

Author:tom9358

Don't get confused my the multitude of lines, just look at the green and red ones. I try to prove with geometry and/or algebra what's shown here: https://youtu.be/zU9FORjUnj0 Also, thanks James Grime and Daniel Hubbard, for the nice puzzle!

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Untitled
BaliDyn
montecarlo circles 1
random coprime pairs
函數的單調性

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Fractional Unit Cube
Refleksi Pada Objek
Untitled
pg.43 #1
Chapter-32-3: Ice cream

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Division
Equilateral Triangles
Straight Lines
Quadratic Functions
Arithmetic Mean