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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 .
NoteCalc - Browser-based notepad built for math calculations.
Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Calcbot for Apple Watch - Calculate, convert, and split tips from your wrist