Flint: Fast Library for Number Theory
Flint is a fast, open-source C library for number theory, offering arbitrary-precision arithmetic, polynomial and matrix operations, and support for various number types. It is widely used in mathematics and cryptography for its performance and efficient algorithms.
Background
Flint is an open-source C library for number theory (arithmetic of integers, polynomials, matrices) that prioritizes speed. It is commonly used in computer algebra systems like SageMath, as well as research in cryptography and pure math. Its key audience is mathematicians and computer scientists who need to do heavy symbolic or number-theoretic computations. The library competes with or complements PARI/GP and NTL, and its performance gains often come from optimized algorithms (e.g., fast Fourier transforms, multimodular techniques) and careful low-level C coding. For a general tech reader, Flint matters because number-theoretic operations underpin many cryptographic systems (like RSA and elliptic-curve crypto) and scientific computing tools.