Alexandria Library

A curated collection of awesome articles

Here are some ressources related to Mathematics, Geometry, Signal_processing. Hoping you will find learning material, alternative tools or just some interesting stuff.

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Articles

Packing Geometric Shapes

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Interactive Music Theory Cheat Sheet

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How do I draw a pair of buttocks? (2014)

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Signed distance functions in 46 lines of Python

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Astronomical Calculations for Hard SF in Common Lisp

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What do numbers look like?

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If ghosts could speak, their speech would approximate this key (1778)

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Holier Than Thou: Precision Holes by Drilling, Boring, and Reaming (2021)

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Show HN: SymForce – Fast symbolic computation, code generation, and optimization

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Repulsive Curves

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A high-dimensional sphere spilling out of a high-dimensional cube

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Interactive piano reference to major and minor scales

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Erich's Packing Center

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Show HN: Fourier Transform Visualized via WebGL

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3D printed mirror array

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Fibonacci Sphere

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Stanford Bunny

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Gradient Free Optimizers: A collection of modern optimization methods in Python

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Parametric lamp design using circle packings

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A website to make 3D geometry shapes out of paper

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Seven Sets Venn Diagram

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Grassmann.jl A\b 3x faster than Julia's StaticArrays.jl

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Bicycle Geometry Terms

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Reinventing the Wheel: Discovering the Optimal Rolling Shape with PyTorch (2019)

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Guitar Decomposed: 5. Mutating the Third

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Gamedev Tutorial: Dot Product, Rulers, and Bouncing Balls

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Ryanair, Hamiltonian Cycles, and using graph theory to find cheap flights (2018)

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Topology and complex analysis for the unsuspecting game dev

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Gamedev Tutorial: Trigonometry Basics – Sine and Cosine

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Ryanair, Hamiltonian Cycles, and using graph theory to find cheap flights

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Euclidea – Geometric construction game with straightedge and compass

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A visualization of the prime factors of the first million integers

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Evenly distributing points on a sphere

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Sin and Cos: The Programmer's Pals

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Sequential Testing for Determining Cat Chirality

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Tiny Art in Less Than 280 Characters (2017)

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The sound of space-filling curves

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Math behind rotation in MS Paint (2011)

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Turning minor-key songs major

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Calculating the Distance Between Points in Wrap Around (Toroidal) Space

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Geometric Constructions Game with Straightedge and Compass

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Spikey Spheres

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Ao is a tool for programmatic computer-aided design using Scheme

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What is the roundest country?

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Show HN: Rendering black holes with Haskell

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The Vector Space of the Polish Parliament in Pictures

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Defining an Escher Drawing with Julia

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ImplicitCAD: Powerful, Open-Source, Programmatic CAD

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Functional Geometry

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Tex – Show off your best scientific illustration

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Donut math: how donut.c works (2011)

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QR Code in shopping cart handle

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How to automatically choose a camera viewing angle for any 3D model

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How to Slice a Bagel into Two Linked Halves

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Create your next conference poster with LaTeX

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Godel Escher Bach QR Code shadow cube

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Happy Valentine's Day

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Conway's Game of Life, using floating point values instead of integers

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Donut math: How donut.c works

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7 sets Venn Diagram: interactive 128 color combinations from mixing 7 colors

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High-dimensional spheres are "spikey"

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5 + (-sqrt(1-x^2-(y-abs(x))^2))*cos(30*((1-x^2-(y-abs(x))^2)))

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Rob Pike on Go interfaces

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How to Slice a Bagel into Two Linked Halves

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How to Slice a Bagel into Two Linked Halves

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Why kids don't program

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A visualization of why 1/4 + 1/16 + 1/64 + 1/256 + ... = 1/3

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Write shaders for the (sim) Vegas sphere

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How do computers calculate sine?

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Schedule-Free Learning – A New Way to Train

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Stacking triangles for fun and profit

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Tritone Substitutions

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