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  OpenCV

  Open Source Computer Vision Library

  29,947 weekly downloads
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  matplotlib

  Matplotlib is a python library for making publication quality plots using a syntax familiar to MATLAB users. Matplotlib uses numpy for numerics. Output formats include PDF, Postscript, SVG, and PNG, as well as screen display.

  12,078 weekly downloads
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  FreeCAD

  a parametric 3D CAD modeler

  9,446 weekly downloads
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  Celestia

  Real-time 3D visualization of space

  4,876 weekly downloads
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  SciPy: Scientific Library for Python

  SciPy is package of tools for science and engineering for Python. It includes modules for statistics, optimization, integration, linear algebra, Fourier transforms, signal and image processing, ODE solvers, and more.

  5,293 weekly downloads
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  gretl

  GNU Regression, Econometrics and Time-series Library

  4,604 weekly downloads
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  JFreeChart

  JFreeChart is a free (LGPL) chart library for the Java(tm) platform. It supports bar charts, pie charts, line charts, time series charts, scatter plots, histograms, simple Gantt charts, Pareto charts, bubble plots, dials, thermometers and more.

  4,231 weekly downloads
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  Maxima -- GPL CAS based on DOE-MACSYMA

  Computer Algebra System written in Common Lisp

  3,920 weekly downloads
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  Pure Data Computer Music System

  The Pure Data (short Pd) project on SourceForge unifies the extensions (or externals) written for the Pure Data Graphical Computer Music System written by Miller Puckette with contributions from many others.

  2,827 weekly downloads
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  G'MIC

  A full-featured image processing framework.

  2,084 weekly downloads
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  FreeMat

  Freemat is an interpreted, matrix-oriented development environment for engineering and scientific applications, similar to the commercial package MATLAB. Freemat provides visualization, image manipulation, and plotting as well as parallel programming.

  1,871 weekly downloads
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  Avogadro

  Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science and related areas. It offers a flexible rendering framework and a powerful plugin architecture.

  1,410 weekly downloads
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  Engauge Digitizer

  Convert graphs or map files into numbers.

  1,367 weekly downloads
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  K-3D

  K-3D is the free (as in freedom) 3d modeling, animation, and rendering system.

  1,357 weekly downloads
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  qwt

  Qwt is a graphics extension to the Qt GUI application framework from Trolltech AS of Norway. It provides a 2D plotting widget and more.

  1,246 weekly downloads
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  mp3splt

  mp3splt is a free utility to split mp3 and ogg files without decoding, selecting begin/end time; if file is an album, you can get splitpoints automatically from internet or a local cue, cddb file. It also splits Mp3Wrap and AlbumWrap archives.

  1,252 weekly downloads
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  The JUMP Pilot Project

  OpenJUMP is a community driven fork of JUMP the "Java Unified Mapping Platform" GIS software. The original JUMP was developed by Vivid Solutions, released under GPL2 in 2003 and discontinued in 2006. During 2004 already some enthusiastic developers joined together to enhance further the features of JUMP. They launched an independent development branch called OpenJUMP. The name gives credit to the original JUMP development, and at the same time describes the objectives of this project to be fully open to anyone wanting to contribute. These days OpenJUMP is developed and maintained by volunteers around the globe.

  1,374 weekly downloads
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  PyMOL Molecular Graphics System

  PyMOL is an OpenGL based molecular visualization system

  984 weekly downloads
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  ARToolKit

  The Augmented Reality Tool Kit (ARToolKit) captures images from video sources, optically tracks markers in the images, and composites them with computer-generated content using OpenGL. Dual-licensed, under the GPL, plus commercially by ARToolworks, Inc.

  988 weekly downloads
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  OpenEMR

  OpenEMR is an open source medical practice management application (EHR EMR PMS) featuring fully integrated electronic health records, scheduling, electronic billing, internationalization, free support, a vibrant community, and a whole lot more.

  957 weekly downloads
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  Python Knowledge Engine (PyKE)

  Both forward-chaining and backward-chaining rules (which may include python code) are compiled into python. Can also automatically assemble python programs out of python functions which are attached to backward-chaining rules. See pyke.sourceforge.ne

  1,217 weekly downloads
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  Hunspell

  Hunspell is a spell checker and morphological analyzer library and program designed for languages with rich morphology and complex compounding or character encoding. Hunspell interfaces: Curses, Ispell compatible pipe interface, OpenOffice.org UNO module

  941 weekly downloads
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  VirtualGL

  VirtualGL redirects 3D commands from a Unix/Linux OpenGL application onto a server-side 3D graphics card and converts the rendered 3D images into a video stream with which remote clients can interact to view and control the 3D application in real time.

  775 weekly downloads
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  LaTeX to RTF converter

  LaTeX to RTF convertor that handles equations, figures, and cross-refe

  708 weekly downloads
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  SuperCollider

  Real-time audio synthesis engine and music programming language

  713 weekly downloads

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