CasNum turns geometry into arithmetic

// 144d agoOPENSOURCE RELEASE

CasNum turns geometry into arithmetic

CasNum is an open-source Python library that implements arbitrary-precision arithmetic using compass-and-straightedge constructions instead of normal numeric primitives. The repo also shows the idea in action with RSA demos and a modified PyBoy Game Boy emulator whose ALU operations run through geometric constructions.

// ANALYSIS

CasNum is exactly the kind of delightfully unnecessary project that still matters because it shows how much creative range open source developers have left. It is less a practical math library than a memorable proof that weird execution models can still teach, entertain, and inspire.

–Numbers are represented as points in the plane, with addition, multiplication, division, and even logical operations derived from line and circle intersections
–The standout demo is a modified Game Boy emulator that boots Pokémon after roughly 15 minutes, then benefits from caching to reach a barely playable speed
–An optional viewer makes the construction process visible, giving the project real educational value beyond the joke
–The repo reads like a software art piece, but it also doubles as a serious exercise in symbolic math, caching, and emulator hacking

// TAGS

casnumopen-sourcedevtoolsdk

DISCOVERED

144d ago

2026-03-07

PUBLISHED

144d ago

2026-03-07

RELEVANCE

5/ 10

AUTHOR

aebtebeten

// KEEP READING

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