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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.

Fast Artificial Neural Network Library is a free open source neural network library, which implements multilayer artificial neural networks in C with support for both fully connected and sparsely connected networks. Cross-platform execution in both fixed and floating point are supported. It includes a framework for easy handling of training data sets. It is easy to use, versatile, well documented, and fast. Bindings to more than 15 programming languages are available. An easy to read introduction article and a reference manual accompanies the library with examples and recommendations on how to use the library. Several graphical user interfaces are also available for the library.

This port installs the prerequisites for Mathworks (r) Matlab for Linux and an installer script (matlab-installer), which automates the somewhat tricky process of installing Linux Matlab. Installing Matlab requires Matlab installation media and a license file and installation key from Mathworks, Inc.

Maxima is a Common Lisp implementation of MIT's Macsyma system for computer based algebra.

FFTW is a C subroutine library for computing the Discrete Fourier Transform (DFT) in one or more dimensions, of both real and complex data, and of arbitrary input size. We believe that FFTW, which is free software, should become the FFT library of choice for most applications. Our benchmarks, performed on a variety of platforms, show that FFTW's performance is typically superior to that of other publicly available FFT software. Moreover, FFTW's performance is portable: the program will perform well on most architectures without modification. The FFTW package was developed at MIT by Matteo Frigo and Steven G. Johnson. Please send email to fftw@theory.lcs.mit.edu so that we can keep track of users and send you information about new releases. The latest version of FFTW, benchmarks, links, and other information can be found at the FFTW home page.

FFTW is a C subroutine library for computing the Discrete Fourier Transform (DFT) in one or more dimensions, of both real and complex data, and of arbitrary input size. We believe that FFTW, which is free software, should become the FFT library of choice for most applications. Our benchmarks, performed on a variety of platforms, show that FFTW's performance is typically superior to that of other publicly available FFT software. Moreover, FFTW's performance is portable: the program will perform well on most architectures without modification. The FFTW package was developed at MIT by Matteo Frigo and Steven G. Johnson. Please send email to fftw@theory.lcs.mit.edu so that we can keep track of users and send you information about new releases. The latest version of FFTW, benchmarks, links, and other information can be found at the FFTW home page.

GOBLIN is a C++ class library focussed on graph optimization and network programming problems. It deals with all of the standard graph optimization problems discussed by textbooks and in courses on combinatorial optimization. Today, GOBLIN provides strongly polynomial algorithms for the following graph optimization problems: - Shortest paths in graphs and digraphs with negative lengths. - Negative cycles and minimum mean cycles. - Strong and 2-connected components. - Minimum spanning trees, arborescences and 1-trees. - Maximum st-flows, feasible circulations and b-flows. - Min-cost st-flows, b-flows and circulations. - Assignment problems of any kind. - 1-matchings, b-matchings, capacitated b-matchings, f-factors and degree-constrained subgraphs. - Directed and undirected Chinese postman problems, T-joins. The library also includes methods for NP-hard problems, namely TSP, ATSP, stable sets and graph colouring.

Fityk is a program for nonlinear fitting of analytical functions (especially peak-shaped) to data (usually experimental data). There are also people using it only to display data or to remove baseline from data. It is reported to be used in crystallography, chromatography, photoluminescence, infrared and Raman spectroscopy and other fields. Fityk knows about common peak-shaped functions (Gaussian, Lorentzian, Voigt, Pearson VII, bifurcated Gaussian, EMG, Doniach-Sunjic, etc.) and polynomials. It also supports user-defined functions. Fityk offers intuitive graphical interface (and also command line interface), variouse optimization methods (standard Marquardt least-square algorithm, Genetic Algorithms, Nelder-Mead simplex), equality constraints, modelling error of x coordinate of points (eg. zero-shift of instrument), handling series of datasets, automation of common tasks with scripts, and more.