Precision Trigonometry: Advanced Calculator for Complex Math
Calc: arbitrary precision C-like arithmetic & 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
A simple calculator for complex number calculation.
Interval Calculator for Engineer
Powerful Calculus Environment and Matrices Handling Engine
A calculator capable of complex arithmetics
RPN calculator running on Windows and Linux