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Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
NumWorks - The graphing calculator that makes learning math easier.
NoteCalc - Browser-based notepad built for math calculations.
Event Viewer - Get help, support, and tutorials for Windows products—Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile.
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .