Crunch (GitHub: vukicevic / crunch, License: MIT) by Nenad Vukicevic is an arbitrary-precision integer arithmetic library, with a focus on speed. It has no dependencies, and the project includes examples for finding prime-numbers, generating keys for RSA, encryption, and decryption.
The examples also demonstrate using WebWorkers with the library, so you could farm out mathematical operations to multiple workers. Crunch includes unit tests and documentation in the readme file.
NodeRT automatically exposes Microsoft's WinRT APIs to Node.js by generating Node modules. This enables Node developers to write code that consumes native Windows capabilities. The generated APIs are (almost) the same as the WinRT APIs listed in MSDN.
howler.js (GitHub: goldfire / howler.js, License: MIT) by James Simpson and GoldFire Studios is an audio library that works with Web Audio and HTML5 Audio. Like similar libraries, it can automatically load the right file format for a given browser, but also comes with a bevy of other features as well. It has an event-based API, and methods like fadeIn for handling some of the basic tasks you'll face when working with audio.
It implements a cache pool and automatically fetches the audio files, which explains why it seemed so fast when I played around with the examples. It's implemented without any dependencies, and I noticed the source was consistently formatted and easy to follow.
depot.js (GitHub: mkuklis / depot.js, License: MIT, bower: depot) by Michal Kuklis is a localStorage wrapper that can be used with CommonJS or AMD, but also works with plain-old script tags. To use it, define a store and then call methods on the store's instance:
Jerome Etienne, WebGL experimenter and author of the Learning Three.js blog, recently published a WebGL Valentine's Day card tutorial which demonstrates his new library, tQuery (License: MIT). While development on tQuery is still ongoing, it provides a friendly alternative API for WebGL based around chainable calls:
Catchall (License: MIT) by Craig Condon is an alternative to window.onerror created to aid development by catching all exceptions. To do this, all functions are wrapped, which is why the author recommends using it during development and testing only.
Connect middleware is also included, which allows arbitrary scripts to be wrapped by the catchall module. The project's API allows strings of code to be wrapped by using catchall.wrap, and catchall.load can be called on a source file URL or file system path:
Geometry.js (License: AOL) by Nijiko Yonskai is a collection of geometry classes used by the author for game development. The following classes are included: Circle, Direction, Rectangle, Vec2d. The vector class in particular seems like something I've found myself writing and rewriting for various WebGL and game-related experiments.
The library includes a rich set of methods, and even aliases mathematical operators:
var v1 = new Vec2d(10, 20)
, v2 = new Vec2d(33, 10);
// [33, 10]
// [0, 0]
library for parsing mathematical formulas by Lars Knickrehm. It has a
very advanced and flexible API, allowing configuration over accuracy,
separators, and the radix character. It supports things like hyperbolic
functions, trigonometric functions, and has translations for English and
Loading the required files and performing a calculation looks like this:
var oMathExt = MathExt.Load();
oMathExt.Calculate('cos(8) * π');
It's clever enough to get the precedence correct:
oMathExt.Calculate('cos 8 * π');
The scientific-calculator interface shown above can be found in the
project's documentation. It uses explorercanvas, which means
it works in IE too.