@thi.ng/math

[!NOTE] This is one of 200 standalone projects, maintained as part of the @thi.ng/umbrella monorepo and anti-framework.

🚀 Please help me to work full-time on these projects by sponsoring me on GitHub. Thank you! ❤️

For the Clojure version, please visit: thi.ng/math-clj

• About
• Status
  • Breaking changes in v4.0.0
• Installation
• Dependencies
• Usage examples
• API
• Authors
• License

About

Assorted common math functions & utilities.

Partially ported from Clojure version thi.ng/math-clj, c.thi.ng and thi.ng/vexed-generation.

Status

STABLE - used in production

Search or submit any issues for this package

Breaking changes in v4.0.0

The introduction of several standard libc math functions causes a behavior change of the existing fmod() function...

• rename fmod() => mod() to align w/ GLSL counterpart
• add new fmod() w/ standard libc behavior (same as JS % op)
• add remainder() w/ standard libc behavior

Installation

yarn add @thi.ng/math

ESM import:

import * as math from "@thi.ng/math";

Browser ESM import:

<script type="module" src="https://esm.run/@thi.ng/math"></script>

JSDelivr documentation

For Node.js REPL:

const math = await import("@thi.ng/math");

Package sizes (brotli'd, pre-treeshake): ESM: 4.80 KB

Dependencies

• @thi.ng/api

Note: @thi.ng/api is in most cases a type-only import (not used at runtime)

Usage examples

13 projects in this repo's /examples directory are using this package:

Screenshot	Description	Live demo	Source
	Basic 2D boid simulation and spatial indexing neighbor lookups	Demo	Source
	Basic crypto-currency candle chart with multiple moving averages plots	Demo	Source
	Fisheye menu list component for thi.ng/rdom	Demo	Source
	2D Bezier curve-guided particle system	Demo	Source
	Animated sine plasma effect visualized using contour lines	Demo	Source
	Worker based, interactive Mandelbrot visualization	Demo	Source
	Animated, iterative polygon subdivisions & visualization	Demo	Source
	Unison wavetable synth with waveform editor	Demo	Source
	2D scenegraph & shape picking	Demo	Source
	2D scenegraph & image map based geometry manipulation	Demo	Source
	Simplistic SVG bar chart component	Demo	Source
	SVG path parsing & dynamic resampling	Demo	Source
	Interactive ridge-line plot	Demo	Source

API

Generated API docs

TODO

Authors

• Karsten Schmidt (Main author)
• @nkint

If this project contributes to an academic publication, please cite it as:

@misc{thing-math,
  title = "@thi.ng/math",
  author = "Karsten Schmidt and others",
  note = "https://thi.ng/math",
  year = 2013
}

License

© 2013 - 2025 Karsten Schmidt // Apache License 2.0