[](https://badge.fury.io/js/algebrite) Algebrite is a Javascript library for symbolic mathematics (technically, CoffeeScript) designed to be comprehensible and easily extensible. ```js var Algebrite = require('algebrite') Algebrite.run('x + x') // => "2 x" Algebrite.factor('10!').toString() // => "2^8 3^4 5^2 7" Algebrite.eval('integral(x^2)').toString() // => "1/3 x^3" // composing... Algebrite.integral(Algebrite.eval('x')).toString() // => "1/2 x^2" ``` # Features Algebrite supports: arbitrary-precision arithmetic, complex quantities, simplification, expansion , substitution, symbolic and numeric roots, units of measurement, matrices, derivatives and gradients, tensors, integrals, multi-integrals, computing integrals and much more! # Examples and manual Please refer to [http://algebrite.org/](http://algebrite.org/) All the built-in methods in Algebrite are exposed through a javascript interface. Strings are automatically parsed as expressions, numbers are converted into the appropriate representation, and the internal cons objects are returned. The cons objects have a `toString` method which converts it into a pretty-print notation. # How to build For node use: 1. make sure npm is installed 2. ```npm install``` 3. ```npm run build``` To debug things, better use the debugger from Chrome, so build for the browser like so: 1. make sure npm is installed 2. make sure browserify is installed 3. ```npm install``` 4. ```npm run build-for-browser``` 5. open ```index.html``` # How to test For full tests: ``` npm test ``` For the subset of tests in run-micro-tests.coffee: ``` npm run microtest ``` # Contribute please take a look at the [contributing](https://github.com/davidedc/Algebrite/blob/master/contributing.md) file. # References Algebrite starts as an adaptation of [the EigenMath CAS by George Weigt](http://eigenmath.sourceforge.net/Eigenmath.pdf). Also you might want to check another fork of EigenMath: [SMIB by Philippe Billet](http://smib.sourceforge.net/). Another CAS of similar nature is [SymPy](http://www.sympy.org/en/index.html) made in Python. Three other Javascript CAS are * [javascript-cas by Anthony Foster](https://github.com/aantthony/javascript-cas) supporting "differentiation, complex numbers, sums, vectors (dot products, cross products, gradient/curl etc)" * [Coffeequate by Matthew Alger](http://coffeequate.readthedocs.org/) supporting "quadratic and linear equations, simplification of most algebraic expressions, uncertainties propagation, substitutions, variables, constants, and symbolic constants". * [Algebra.js by Nicole White](http://algebra.js.org) which among other things can build and solve equations via a "chainable" API.