Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
EBTCalc - Programmable Reverse Polish Notation (RPN) calculator that lets you create custom buttons.
NumWorks - The graphing calculator that makes learning math easier.
FreeCommander - FreeCommander is an easy-to-use alternative to the standard windows file manager. The program helps you with daily work in Windows. Here you can find all the necessary functions to manage your data stock.
SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
NoteCalc - Browser-based notepad built for math calculations.