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Gentoo is a free operating system based on either Linux or FreeBSD that can be automatically optimized and customized for just about any application or need. Extreme configurability, performance and a top-notch user and developer community are all hallmarks of the Gentoo experience.

4.67626
   
  0 reviews  |  681 users  |  6,740,256 lines of code  |  372 current contributors  |  Analyzed about 1 month ago
 
 

gnuplot plots 2d and 3d graphs, from a data file or with a formula. It has an interactive mode with online help, or it can be used non-interactively. gnuplot does function fitting to data sets, and it does output to many terminals, among which are PostScript, X11 display, PNG, and GIF (via the old gd library).

4.14286
   
  0 reviews  |  152 users  |  157,513 lines of code  |  5 current contributors  |  Analyzed 8 days ago
 
 

Octave is a high-level language, primarily intended for numerical computations. It provides a convenient command line interface for solving linear and nonlinear problems numerically, and for performing other numerical experiments. It may also be used as a batch-oriented language.

4.26829
   
  0 reviews  |  109 users  |  778,590 lines of code  |  86 current contributors  |  Analyzed 1 day ago
 
 

Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets and nebulae, and has many other features including multiple panoramic landscapes, fog, light pollution simulation and a built-in scripting engine. Stellarium comes with a star ... [More] catalogue of about 600 thousand stars and it is possible to download extra catalogues with up to 210 million stars. Stellarium has multiple sky cultures - see the constellations from the traditions of Polynesian, Inuit, Navajo, Korean, Lakota, Egyptian and Chinese astronomers, as well as the traditional Western constellations. It is also possible to visit other planets in the solar system - see what the sky looked like to the Apollo astronauts, or what the rings of Saturn looks like from Titan. [Less]

4.35484
   
  0 reviews  |  87 users  |  892,175 lines of code  |  45 current contributors  |  Analyzed 7 days ago
 
 

Celestia is an OpenGL-based 3D space simulation for Unix and Win32 that lets you travel through the solar system, to the stars, and even beyond the galaxy. Visit over 100,000 stars, 100 solar system bodies, and all known extrasolar planets.

4.40909
   
  1 review  |  66 users  |  240,522 lines of code  |  4 current contributors  |  Analyzed over 2 years ago
 
 

Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. Maxima yields high ... [More] precision numeric results by using exact fractions, arbitrary precision integers, and variable precision floating point numbers. Maxima can plot functions and data in two and three dimensions. The Maxima source code can be compiled on many systems, including Windows, Linux, and MacOS X. The source code for all systems and precompiled binaries for Windows and Linux are available at the SourceForge file manager. [Less]

4.41379
   
  0 reviews  |  52 users  |  500,810 lines of code  |  12 current contributors  |  Analyzed 1 day ago
 
 

Sage is mathematical software, very much in the same vein as MATLAB, MAGMA, Maple, and Mathematica. Unlike these systems, every component of Sage is GPL-compatible. The interpretative language of Sage is Python, a mainstream programming language. Use Sage for studying a huge range of mathematics ... [More] , including algebra, calculus, elementary to very advanced number theory, cryptography, numerical computation, commutative algebra, group theory, combinatorics, graph theory, and exact linear algebra. It is available for download from sagemath.org and its mirrors in source or binary form. If you have any questions and/or problems please report them to the Google groups sage-devel or sage-support. You can also drop by in #sagemath on freenode IRC. [Less]

4.72727
   
  0 reviews  |  42 users  |  631,013 lines of code  |  133 current contributors  |  Analyzed 8 days ago
 
 

NLTK — the Natural Language Toolkit — is a suite of open source Python modules, linguistic data and documentation for research and development in natural language processing, supporting dozens of NLP tasks, with distributions for Windows, Mac OSX and Linux.

5.0
 
  0 reviews  |  41 users  |  214,316 lines of code  |  40 current contributors  |  Analyzed 5 days ago
 
 

JabRef is a graphical Java application for managing bibtex (. bib) databases. It uses the bitex format as native file format, which makes it ideal for collaborating. JabRef can import bibliographies in numerous formats, provides extensive searching, sorting, and grouping features, can automatically ... [More] create bibtex keys, and can insert citations into TeXstudio, OpenOffice, WinEdit, LyX, and more. With Bibtex4word, an intengration with Microsoft Word is also possible. [Less]

4.61111
   
  0 reviews  |  34 users  |  148,987 lines of code  |  33 current contributors  |  Analyzed 5 days ago
 
 

KStars

claimed by KDE

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KStars is a graphical desktop planetarium for KDE. It provides an accurate simulation of the night sky, as seen from any location on Earth, on any date. It has a host of tools for every astronomer and astronomy enthusiast!

4.61538
   
  0 reviews  |  27 users  |  145,090 lines of code  |  22 current contributors  |  Analyzed 4 days ago
 
 
 
 

Creative Commons License Copyright © 2013 Black Duck Software, Inc. and its contributors, Some Rights Reserved. Unless otherwise marked, this work is licensed under a Creative Commons Attribution 3.0 Unported License . Ohloh ® and the Ohloh logo are trademarks of Black Duck Software, Inc. in the United States and/or other jurisdictions. All other trademarks are the property of their respective holders.