shauns/postcss-math

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with different data types like numbers, big numbers, complex numbers, fractions, units, and matrices.

PostCSS helpers to throw or output GNU style messages

Reduce function calls in a string, using a callback

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.