Free Zip software and Rar extractor
Calc: arbitrary precision C-like arithmetic & calculator
A Forth compiler with a little difference
Arbitrary-precision CRC calculator and algorithm finder
Calculates income tax form entries, helps do your taxes.
Financial Derivatives Calculator with 168+ Models (Options Calculator)
Command-line calculator and libray.
Electronic paper for computations and graphs
A powerful arbitrary-precision calculator.
Simple RPN desktop calculator, implemented with wxWidgets and Lua.
Smith Chart Calculator JAVA
A calculator to work with historical dates and calendars.
A simple calculator for complex number calculation.
TI graphing calculators <-> computer communication software
Calculate primes by using extremely fast sorting
Tinger Calc is a powerful scientific calculator environment.