Fraction is a rational numbers library written in JavaScript

🔟 Implementation of rational number arithmetic for .NET with arbitrary precision.

➗ Library for parsing math expressions with rational numbers, finding their derivatives and compiling an optimal IL code

Multi-paradigm programming language compiled to C++, written in Python.

Advanced numeric data types for Swift 5, including BigInt, Rational, and Complex numbers.

.NET library for rational arithmetic based on a stack machine.

⌛ Type-safe time units in Haskell

Generic immutable recursive data representation API targeted at source code models and more.

Arbitrary-precision arithmetic for Swift, in Swift

Arbitrary precision rational number class

Arithmetic with small and with very large rationals is made fast.

BeeNum is an arbitrary-precision arithmetic library.

Arbitrary-precision decimals. Enables making math calculations with rational numbers, without precision loss.

D-language high-level wrapper for GNU MP (GMP) library

Set of simple mathematical classes in C# (Vectors, Matrixes, Polynoms, Systems of linear equations, Integrals methods, Complex numbers, Rational numbers, Graphs, Methods for solving differential equations) + some features such as memoize (function values memorising)

Binary rational numbers in Coq [maintainer=@herbelin]

accurate scientific calculator with fractions inside

A Programmatic Approach to Arithmetic

Mathematics.NET is a C# class library that provides tools for solving mathematical problems.

The LinearAlgebra library is a C++ library that extends the functionality of the previously mentioned Matrix and Rational classes. It offers a wide range of linear algebra operations for matrices and vectors.