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At the suggestion of Linas Vepstas on the Gnu Scientific Library (GSL) list, this GPL'd suite of random number tests will be named "Dieharder". Using a movie sequel pun for the name is a double tribute to George Marsaglia, whose "Diehard battery of tests" of random number generators has enjoyed years of enduring usefulness as a test suite. The dieharder suite is more than just the diehard tests cleaned up and given a pretty GPL'd source face in native C: tests from the Statistical Test Suite (STS) developed by the National Institute for Standards and Technology (NIST) are being incorporated, as are new tests developed by rgb. Where possible, tests are parametrized and controllable so that failure, at least, is unambiguous. A further design goal is to provide some indication of *why* a generator fails a test, where such information can be extracted during the test process and placed in usable form. For example, the bit-distribution tests should (eventually) be able to display the actual histogram for the different bit n-tuplets. Dieharder is by design extensible. It is intended to be the "Swiss army knife of random number test suites", or if you prefer, "the last suite you'll ever ware" for testing random numbers.

Dr. Geo is a GTK interactive geometry software. It allows one to create geometric figure plus the interactive manipulation of such figure in respect with their geometric constraints. It is useable in teaching situation with students from primary or secondary level.

Dynare is a software platform for handling a wide class of economic models, in particular dynamic stochastic general equilibrium (DSGE) and overlapping generations (OLG) models.

EdenMath is a scientific calculator. It does standard arithmetic, probability, and trigonometric functions. LICENSE: GPL2 or later

GKmap is a free K-Map disclosure software, which is developed to solve the Digital Electronics design problems. Along with design it also helps in analysis of information flow in the digital circuits.

GeoGebra is a dynamic mathematics software that joins geometry, algebra and calculus. It is developed for education in secondary schools by Markus Hohenwarter at the University of Salzburg. You can do constructions with points, vectors, segments, lines, conic sections as well as functions and change them dynamically afterwards. Equations and coordinates can be entered directly. Thus, GeoGebra has the ability to deal with variables for numbers, vectors and points, finds derivatives and integrals of functions and offers commands like Root or Extremum. GeoGebra received several international awards including the European and German educational software award.

This is eispack from research.att.com. I've cleaned up the Makefile, but it is otherwise the same. The package is described in: 1. Smith, B.T, Boyle, J.M, Dongerra, J.J., Garbow, B.S., Ikebe, Y., Klema, V.C., and Moler, C.B., Matrix Eigensystem Routines -- EISPACK Guide, Lecture Notes in Computer Science, Vol. 6, Second Edition, Springer-Verlag, New York, Heidelberg, Berlin, 1976 2. Garbow, B.S., Boyle J.M., Dongerra, J.J, and Moler C.B., Matrix Eigensystem Routines -- EISPACK Guide Extension, Lecture Notes in Computer Science, Vol. 51, Springer-Verlag, New York, Heidelberg, Berlin, 1977 As the package is in FORTRAN there are no include files for the library, and the only thing to install is the library itself.

ent applies various tests to sequences of bytes stored in files and reports the results of those tests. The program is useful for evaluating pseudorandom number generators for encryption and statistical sampling applications, compression algorithms, and other applications where the information density of a file is of interest.

Emacs Speaks Statistics (ESS) is an add-on package for emacs text editors such as GNU Emacs and XEmacs. It is designed to support editing of scripts and interaction with various statistical analysis programs such as R, S-Plus, SAS, Stata and JAGS.

A compiler which allows to typeset geometry figures within a (La)TeX document. This program is also useful to convert such figures in EPS format or in various other vector graphic formats.