Precision Trigonometry: Advanced Calculator for Complex Math
Calc: arbitrary precision C-like arithmetic & calculator
engineering programmable calculator
RPNCalc - The command line Reverse Polish Notation (RPN) Calculator
Command-line calculator and libray.
PeCalc is a polyvalent engineering calculator for S&T students
MACE is a Mathematical program for Algorithms, Calculations, Equations
A simple calculator for complex number calculation.
Interval Calculator for Engineer
Calculator for complex numbers
Powerful Calculus Environment and Matrices Handling Engine
RCL, a simulator for Texas Instrument calculators from the 70's.
A calculator capable of complex arithmetics
a reverse Polish notation multi-precision pocket calculator software
One of the best simple arithmetic calculator!
RPN calculator running on Windows and Linux