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        Letter: Q
        
          - 
            QuantLib - 
            A software framework for quantitative finance
          
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            q - 
            Equational programming language
          
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            qa-assistant - 
            Graphical quality assurance report generator
          
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            qalculate-gtk - 
            A multi-purpose desktop calculator for GNU/Linux
          
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            qalculate-kde - 
            A multi-purpose desktop calculator for GNU/Linux
          
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            qascade - 
            Classic puzzle game
          
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            qca - 
            Qt Cryptographic Architecture
          
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            qca-tls - 
            TLS plugin for the Qt Cryptographic Architecture
          
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            qcad - 
            Simple 2D CAD program
          
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            qemu - 
            QEMU is a FAST! processor emulator
          
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            qgit - 
            QGit is a git GUI repository browser
          
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            qgo - 
            Graphical Go client and SGF editor
          
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            qhull - 
            General dimension convex hull programs
          
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            qiv - 
            Quick Image Viewer
          
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            qjackctl - 
            Qt based JACK control application
          
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            qof - 
            Query engine library for C objects
          
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            qps - 
            Visual process status monitor
          
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            qscintilla - 
            A Scintilla port to Qt
          
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            qstat - 
            Real-time Game Server Status for FPS game servers
          
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            qsynth - 
            Qt based Fluidsynth GUI front end
          
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            qt4 - 
            Qt toolkit
          
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            qtparted - 
            Partition Magic clone written in C++ using the Qt toolkit
          
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            quadkonsole - 
            Embeds Konsole kparts in a grid layout
          
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            quarry - 
            A multi-purpose board game GUI
          
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            qucs - 
            Circuit simulator
          
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            quilt - 
            Scripts for working with series of patches