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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.

CVC3 is an automatic theorem prover for Satisfiability Modulo Theories (SMT) problems. It can be used to prove the validity (or, dually, the satisfiability) of first-order formulas in a large number of built-in logical theories and their combination. CVC3 is the last offspring of a series of popular SMT provers, which originated at Stanford University with the SVC system. In particular, it builds on the code base of CVC Lite, its most recent predecessor. Its high level design follows that of the Sammy prover. CVC3 works with a version of first-order logic with polymorphic types and has a wide variety of features including: * several built-in base theories: rational and integer linear arithmetic, arrays, tuples, records, inductive data types, bit vectors, and equality over uninterpreted function symbols; * support for quantifiers; * an interactive text-based interface; * a rich C and C++ API for embedding in other systems; * proof and model generation abilities; * predicate subtyping; * essentially no limit on its use for research or commercial purposes (see license).

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

bc is an arbitrary precision numeric processing language. Syntax is similar to C but differs in many substantial areas. It supports interactive execution of statements. The bc utility is included in the POSIX 1003.1-2008 standard.

Although it works best with the TeX fonts installed, jsMath canfall back on a collection of image-based fonts (which can still be scaled or printed at high resolution). This is a pack of those.

Scriptable bar graph generator with stacked and clustered bars support, using gnuplot to produce fig output and then mangle it to fill in the bars. Any number of clustered datasets are supported, as well as automatic averaging and other features.

GotoBLAS2 is a fast implementation of Basic Linear Algebra Subprograms. It supports various architectures and is optimized for many cores, including Intel Nehalem and Atom, Via Nano, SiCortex, AMD Shanghai and Istanbul.

levmar is a GPL-licensed library written in C, that implements the Levenberg-Marquardt (LM) optimization algorithm, one of the most effective methods for solving nonlinear least squares problems.

KAlgebra is a mathematical calculator based on content markup MathML language, capable to make simple MathML operations (arithmetic and logical) and to representate 2D and 3D graphs.

The GNU Scientific Library (GSL) is a collection of routines for numerical computing. The routines are written from scratch by the GSL team in ANSI C, and are meant to present a modern Applications Programming Interface (API) for C programmers, while allowing wrappers to be written for very high level languages.