Standard rails extentions I find quite handy time to time

Wrapper around Math module; Has additional methods.

Methodes mathematique permettant de simplifier le calcul des cubes, carres, logs....

random math questions generator

This utility/library search mathematical reviews sites and fetches metadata about articles. It can return results as one of text, xml, html, yaml, json or ruby formats.

Convert math markup between LaTeX, MathML, and OMML using Ruby. A wrapper for TeXMath, a Haskell library written by the creator of Pandoc.

Mathmatical expression calculator

The SuperMemo algorithm (version SM-2) in ruby

Gem for mathematics method and different data structure like complex and vector and matrix and some else you're been able to see his method on Homepage of this gem

Includes collection of mathematical methods

Symblic Mathmatics library inspired by SymPy and dxdy

CLI client for mathematics.io

MathML Library

This version include two important page 'Contact' and 'Register' with the 'Math-Captcha' method submit for prevent hacker attack.

Emiyha - basic 3D math extensions

This gem will help you to solve Abramov book math tasks.

This gem will help you to test math exercises from Abramov book

gem is created for testing some solutions of math-tasks

Fast Implementation of Gruber's Markdown in C With Math(LaTex, MathJax) Support

A converter for Jekyll to turn math into images.