Python library for arbitrary-precision floating-point arithmetic

A Compositional Numeric Library for C++

Error propagation calculator and library for physical measurements. It supports real and complex numbers with uncertainty, arbitrary precision calculations, operations with arrays, and numerical integration.

Arb has been merged into FLINT -- use https://github.com/flintlib/flint/ instead

C-style arbitrary precision calculator

Multiprecision for modern C++

C++ library for ODE integration via Taylor's method and LLVM

Wide-Integer implements a generic C++ template for uint128_t, uint256_t, uint512_t, uint1024_t, etc.

Library for Multiprecision Compile-Time and Run-Time Arithmetic (including Modular Arithmetic)

LinBox - C++ library for exact, high-performance linear algebra

Python library for ODE integration via Taylor's method and LLVM

Fast complex polynomial root finder, with support for arbitrary precision calculations

Wide-Decimal implements a generic C++ template for large decimal float types from about 10 up to 10 million digits.

High-Precision Floating-Point Types for Delphi

A C++ library for big integers and dynamic precision floating-point

Analytic Number Theory high-precision GnuMP routines

BeeNum is an arbitrary-precision arithmetic library.

What C# can do for studying Finite Groups, quotient groups, semi-direct products, homomorphisms, automorphisms group, characters table, minimalistic rings and fields manipulations, polynomials factoring, fields extensions and many more...

Mulitprecision Arrays

A CUDA implementation of the transpose-free Quasi-Minimal Residual method