math

math is a collection of math helpers for graphics and simulations.

• High performance: allocation-free, monomorphic, benchmarked
• Tiny: mean and lean, tree-shakable, only pay for what you use
• Portable: interops with WebGL, WebGPU, Wasm, your favourite renderer, more.
• Data-oriented: data-in, data-out functions over caller-owned data, without owning the data lifecycle.

> npm install math@canary

import { type Vec3, vec3 } from 'math';

// math types are plain arrays — the constructors just return literals:
const a: Vec3 = [1, 2, 3]; // a plain-array literal
const b = vec3.fromValues(1, 2, 3); // the same as `a`
const out = vec3.create(); // returns [0, 0, 0]

// functions write into their first argument, so nothing is allocated:
vec3.add(out, a, b); // out = [2, 4, 6]
vec3.normalize(out, out); // aliasing an argument is fine

The library is grouped by domain behind subpath entrypoints. All APIs are highly tree-shakeable, only pay for what you use:

import { mat4, quat, vec3 } from 'math'; // core: vectors, quats, matrices
import { simplex3d } from 'math/noise'; // perlin / simplex noise
import { mulberry32 } from 'math/random'; // seeded rng
import { easing, spring } from 'math/time'; // easings & springs
import { fabrik2, fabrik3 } from 'math/ik'; // inverse kinematics
// also: math/color, math/geometry, math/shapes — import only what you use

Look At	Fibonacci Sphere	Contains Point
Convex Hull 3D	Convex Hull 2D	Polygon2 Decomposition
Polygon2 Triangulation	Circumcircle	FABRIK 2D
FABRIK 2D Snek	FABRIK 3D	Flow Field
Color Wheel	Ridged Noise Voxel Terrain	Simplex 4D Looping Noise
Simplex 2D Noise Terrain	Quaternion Slerp	Spring
Easing

• API.md — every export with its signature and a one-line description, grouped by module. Flat and greppable, so it's easy to search or hand to an AI coding assistant.
• Online API docs — the full typedoc reference, with search and cross-links.
• What's inside — jump straight to a module or namespace.

• The vec*, quat*, mat* code started life as a port of mathcat, which started as a TypeScript port of glMatrix (https://glmatrix.net/)
• The simplex noise is adapted from https://github.com/josephg/noisejs
• Thank you @kaleb for the npm package name!