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Algotutor is an interactive program for observing the intermediate steps of algorithms. The target audience is computer science students and/or anyone who studies algorithms and/or data structures.

sfft is a library to compute discrete Fourier transforms of signals with a sparse frequency domain, using an algorithm that is more efficient than other known FFT algorithms. It was developed by Haitham Hassanieh, Piotr Indyk, Dina Katabi, and Eric Price at the Computer Science and Artifical Intelligence Lab at MIT. Performance optimizations were developed by J. Schumacher at the Computer Science Department of ETH Zurich in 2013.

Nightfall is an astronomy application for fun, education, and science. It can produce animated views of eclipsing binary stars, calculate synthetic lightcurves and radial velocity curves, and eventually determine the best-fit model for a given set of observational data of an eclipsing binary star system. It is, however, not able to fry your breakfast egg on your harddisk. ;-)

"Beneath a Steel Sky is a 2D point-and-click science fiction thriller set in a bleak vision of the future, originally published for DOS and the Amiga. ..." Now playable on FreeBSD, thanks to the help of Tony Warriner at Revolution Software Ltd and the developers of scummvm. This game is distributed by the scummvm project.

Science has unlocked the gates to the unknown, and now only one man stands between Hell and Earth. A sci-fi horror masterpiece, DOOM 3 is like nothing you have experienced. Dramatic storyline, pulse-pounding action, incredible graphics, and revolutionary technology combine to draw you into the most frightening and gripping first person gaming experience ever created.

The Grid Analysis and Display System (GrADS) is an interactive desktop tool that is used for easy access, manipulation, and visualization of earth science data. The format of the data may be either binary, GRIB, NetCDF, or HDF-SDS (Scientific Data Sets). GrADS has been implemented worldwide on a variety of commonly used operating systems and is freely distributed over the Internet.

WordNet (r) is a lexical database for english from the Cognitive Science Laboratory at Princeton University. This is a dictionary converted from the original one into JIS X 4081 format (that is a subset of EPWING V1) by FreePWING. So it can be used by EPWING viewer on Unix and the other OS (e.g. Windows or MacOS). URL for this converted dictionary is

The development of Algol played an important role in establishing computer science as an academic discipline. The Algol 68 Genie project preserves Algol 68 out of educational as well as scientific-historical interest, by making available Algol 68 Genie; a recent, well-featured implementation written from scratch.

OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version. OpenBLAS is an open source project supported by Lab of Parallel Software and Computational Science, ISCAS. NOTE: If you want to specify your CPU microarchitecture manually, please use TARGET_CPU_ARCH knob, e.g., "make TARGET_CPU_ARCH=NEHALEM". This value is set TARGET build flag.

GiNaC is an iterated and recursive acronym for GiNaC is Not a CAS, where CAS stands for Computer Algebra System. It is designed to allow the creation of integrated systems that embed symbolic manipulations together with more established areas of computer science (like computation-intense numeric applications, graphical interfaces, etc.) under one roof.