An arbitrary-precision Decimal type for JavaScript
Arbitrary-precision arithmetic library for PHP
A money and currency library for PHP
Error propagation calculator and library for physical measurements
Arbitrary-precision CRC calculator and algorithm finder
An assembler for the legendary 6502 processor and it's derivatives
A whole-program optimizing compiler for Standard ML
C++ BigInt class enables to work with arbitrary precision integers
Pure-python binary fixed-point arithmetic library
Computer calculations made easy