Calc: arbitrary precision C-like arithmetic & calculator
Error propagation calculator and library for physical measurements
Arbitrary-precision arithmetic library for PHP
Arbitrary-precision CRC calculator and algorithm finder
An assembler for the legendary 6502 processor and it's derivatives
A Portable General-Purpose Computer Algebra System
A whole-program optimizing compiler for Standard ML
generates nice period table from given data
A simple Clifford algebra calculator
C++ BigInt class enables to work with arbitrary precision integers
Pure-python binary fixed-point arithmetic library
print sci num with powers (txtbook) + read back
Computer calculations made easy
Simple renderer of complex functions including recursive
Software for exact computing based on interval arithmetic.
A library for working with various complex numbers in Java.