this is a gem to use in rails, this gem do some basic math operations

Ruby gem extending the SmartSDU Core Ontology with ISO/IEC 80000-specific domain classes: Quantity, Unit, and MathConcept. Includes a Rake task for generating per-part Turtle and JSON-LD exports from YAML source data.

Peas defines constants from music theory and allows one to perform math with them. Currently supports pitches (as MIDI values), pitch classes, and intervals using semitones, wholetones, chromatic, latin or diatonic abbreviations.

Your friendly neighborhood console calculator

A thin jruby wrapper for commons-math (mainly just a way to load the jars in a structured way for now)

Spherical Mercator provides projection math for converting between mercatormeters, screen pixels (of 256x256 or configurable-size tiles), and latitude/longitude

Provide mathematics functions and utilities for Theory of Number. Analysis. Geometry ...

Parses simple mathematical expressions, creates a fully object-oriented expression tree. Evaluation can have injected variables.

Discrete Mathematics REPL and built-in usable library for experimental projects

This library makes it easier to deal with Money values, storing them as BigDecimal to avoid floating-point math errors.

This is a proof-of-concept experiment inspired by Sage

A symbolic math library for ruby

Defines UTF-8 symbols for common math concepts

Contains a text parser for converting various measurements into a base unit, as well as doing several mathematical functions with those numbers

Extmath is a library that extends Ruby's built-in math library. This gem reflects the current version (2.3.0) of the extmath library originally written by Josef Schugt.

Adds TeX math support to Thredded markup via KaTeX.

this is used for performing maths calculation

Round time using logic and not complex math.

The capabilities of the Color library are limited to pure mathematical manipulation of the colours based on colour theory without reference to colour profiles (such as sRGB or Adobe RGB). For most purposes, when working with the RGB and HSL colours, this won't matter. However, some colour models ...

Handles doing math with unknown values so you can avoid doing nil checks on formulas