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Emc2 is a portable, interactive, graphical editor of two-dimensional mesh geometries. It can create and modify geometries (as in CAD), and define line discretizations, subdomains, and reference numbers (to take into account boundary conditions and material properties). Grid and Delaunay-Voronoi meshes composed of triangles or quadrilaterals can be regularized, rotated, and modified via the addition, removal, or moving of vertices. It is suggested that users also install the math/bamg port.

Diehard is a battery of tests for random number generators developed by Dr. George Marsaglia of Florida State University Department of Statistics. Originally developed for testing pseudo-random generators, Diehard has since become a de facto standard for testing RNGs.

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.

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

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.