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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).
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.
Maxima is a Common Lisp implementation of MIT's Macsyma system for computer based algebra. It features plotting over the network via netmath, computations over the network, extensive testing on a large array of problems, a source level debugger for
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maxima code, ease of extension in fundamentally new ways, access to Common Lisp and portability to many systems. [Less]
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. The display includes 40,000 stars, 13,000 deep-sky objects, 2500 comets and asteroids, all 8 planets, and the Sun and Moon.
JabRef is a graphical Java application for managing bibtex (. bib) databases. It can import bibliographies in numerous formats, provides extensive searching, sorting, and grouping features, can automatically create bibtex keys, and can insert citations into LyX.
Kalzium is an application which will show you some information about the periodic system of the elements. Therefore you could use it as an information database. It also includes an equation solver and 3D viewer for molecules.
The ATLAS (Automatically Tuned Linear Algebra Software) project is an ongoing research effort focusing on applying empirical techniques in order to provide portable performance. It provides C and Fortran77 interfaces to a portably efficient BLAS implementation, as well as a few routines from LAPACK.
Set of open, reliable, math functions in classes (=collections by domains) designed to be used from any project/library, with any data-structure.
In other words, all the things you usually rewrite for each project. But coded with universality in
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mind.
The most important package is the org.openmali.vecmath2 one, which contains an improved vecmath - similar to Sun's vecmath, but better, faster and more convenient. [Less]
PLplot is a library of functions that are useful for making scientific plots. PLplot can be used from within compiled languages such as C, C++, FORTRAN and Java, and interactively from interpreted languages such as Octave, Python, Perl and Tcl.
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The PLplot library can be used to create standard x-y plots, semilog plots, log-log plots, contour plots, 3D surface plots, mesh plots, bar charts and pie charts. Multiple graphs (of the same or different sizes) may be placed on a single page with multiple lines in each graph.
A variety of output file devices such as Postscript, png, jpeg and others, as well as interactive devices such as xwin, tk, xterm and Tektronics devices are supported. [Less]
Step is an interactive physical simulator. It works like this: you place some bodies on the scene, add some forces, such as gravity or springs, then click "Simulate" and Step shows you how your scene will evolve according to the laws of physics. You
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can change every property of bodies and forces in your experiment (even during simulation) and see how this will change evolution of the experiment. With Step you can not only learn but feel how physics works! [Less]
Corina is an open source, freely available, dendrochronology program used and developed by the Cornell Tree-Ring Laboratory.
The main features of Corina include:
* Support for standard serial and USB measuring platforms.
* Multiple cross dating
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measures including T-scores, Weiserjahre and Trend.
* Standard dendro file format support including Tucson, Heidelberg and TSAP.
* Advanced graphing support.
Corina is written in Java and so can be run on most operating systems include Windows, Mac OSX and Linux. [Less]
Console scientific calculator which support know : cos,atan,ln,exp,derive,prime test,... It works on Windows and Linux.
XMDS is a code generator that integrates equations. You write them down in human readable form in a XML file, and it goes away and writes and compiles a C++ program that integrates those equations as fast as it can possibly be done in your architecture.
This is another library for creating and manipulating graphs. There is simply no other graph library out there which can be handle graphs of the size the author is confronted with efficiently. Whenever possible igraph tries to be also user friendly
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and portable.
igraph started as an additional package to the GNU R statistical environment, and still some functions which are hard to implement in C are available only in R (like interactive graphics). Most functions are however now written in C and they can be compiled without R as a separate library. [Less]
A finite state machine for running control applications under RTAI.
Simple testing tool to generate RTP data packets and send it via netwok interface or save into pcap file. Primarily intended for use with SIPp application to test speech quality with different codecs.