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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.

Grace is a WYSIWYG 2D plotting tool for the X Window System and M*tif, successor of ACE/gr (Xmgr). A few of its features are: * User defined scaling, tick marks, labels, symbols, line styles, colors. * Batch mode for unattended plotting. * Read and write parameters used during a session. * Polynomial regression, splines, running averages, DFT/FFT, cross/auto-correlation. * Exports high-resolution graphics to (E)PS, PDF, MIF, and SVG formats * Supports cross-platform PNM, JPEG and PNG formats While grace has a convenient point-and-click interface, most parameter settings and operations are available through a command line interface (found in Data/Commands).

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.

Commons Math is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.

Commons Math is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.

The JTS Topology Suite is an API of 2D spatial predicates and functions. It has the following design goals: * JTS conforms to the Simple Features Specification for SQL published by the Open GIS Consortium * JTS provides a complete, consistent, robust implementation of fundamental 2D spatial algorithms * JTS is fast enough for production use * JTS is written in 100% pure Java(TM) * JTS is open source (under the LGPL license)

KBruch is a small program to practice calculating with fractions and percentages. Different exercises are provided for this purpose and you can use the learning mode to practice with fractions. The program checks the user's input and gives feedback. FEATURES - Arithmetic excercise: in this exercise you have to solve a given fraction task. You have to enter the numerator and the denominator. This is the main exercise. - Comparison excercise: in this exercise you have to compare the size of two given fractions, using the symbols >, < or =. - Conversion excercise: in this exercise you have to convert a given number into a fraction. - Factorization excercise: in this exercise you have to factorize a given number into its prime factors. - Percentage excercise: in this exercise you have to calculate percentages.