Very long integer class and some methods for it

optimized karatsuba polynomial multiplication

C++17 implementation of arbitrary precision integer arithmetic

Fast Multiplication algorithm for very long digit numbers.

The implementation of the big integers arithmetic

Fast Fibonacci numbers with arbitrary precision

Karatsuba法を用いて大きな整数や多項式の乗算を効率的に計算するプログラム

10 algorithms for long arithmetic

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

Karatsuba multiplication for big integers