Tag: #mathematics

Homogeneous coordinates in 3D

I implement homogeneous coordinates in 3D, including rotation, scaling, translation, and projection matrices, and use them to create an animated 3D house scene. 2020-11-29

Homogeneous coordinates in 2D, from scratch

Homogeneous coordinates enable a matrix to translate points. I show a six-line JS library. 2020-11-28

A matrix library in 5 lines of code

A 5-line matrix library, and how to derive it without rote memorization. 2020-11-27

A probabilistic pub quiz for nerds

A “true or false” quiz where you respond with your confidence level, and the optimal strategy is to report your true belief. 2020-04-26

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