Open Source Linux Mathematics Software - Page 31

Graphical representation of fractals, IFS's, strange attractors,L-systems and generally chaos theory aspects.

Charlemagne is a versatile genetic programming application which includes a command-line client and an interactive console mode. It features built in input-output mapping support, and is user-extensible for complex fitness evaluation in Python and Lisp

This programm draws charts and diagramms out of many different also usertyped terms.

Mathematics, Chemistry and Bio-informatics semantic knowledge editor and simulation environment. It should serve as interactive science learning program or science classroom notebook and workshop.

ChemCalc is a calculator that is more oriented towards chemistry. Although starting out as a console app, it is a hope that an X11 interface will be designed at a later time.

ChemCpp is a C++ toolbox for chemoinformatics focusing on the computation of kernel functions between chemical compounds. Together with Support Vector Machines, these kernel functions find natural applications for virtual screening of molecules.

Fast search using a standard SQL on Oracle or PostgreSQL database. The package includes the database creator, loader and web application. It supports SMILES and SMARTS substructure searches, similarity search, stereochemistry.

Calculate the number of solutions to place n queens on an n*n chess board, without any queen attacking each other. Options allow using rooks instead of queens, disabling knight attacks and setting the minimum distance between queens.

===== Project moved to https://github.com/fpetitjean/Chordalysis ===== Log-linear analysis is the statistical method used to capture multi-way relationships between variables. However, due to its exponential nature, previous approaches did not allow scale-up to more than a dozen variables. We present here Chordalysis, a log-linear analysis method for big data. Chordalysis exploits recent discoveries in graph theory by representing complex models as compositions of triangular structures, also known as chordal graphs. Chordalysis makes it possible to discover the structure of datasets with thousands of variables on a standard desktop computer. Associated papers at ICDM 2013, ICDM 2014 and SDM 2015 can be found at http://www.francois-petitjean.com/Research/ YourKit is supporting Chordalysis open source project with its full-featured Java Profiler. YourKit is the creator of innovative and intelligent tools for profiling Java and .NET applications. http://www.yourkit.com

SAS codes for LMG variable importance, Box-Cox transformation including interactions. Documentation and PowerPoint slides. Directories under "Files" with descriptions: NESUG 2014: "A Fast, High-Precision Implementation of the Univariate One-Parameter Box-Cox Transformation Using the Golden Section Search in SAS/IML®" SESUG 2017: "Decomposing the R-squared of a Regression Using the Shapley value in SAS®" SESUG 2019: "Conditionally Executing Data Steps and Statements Based on the Presence of Variables in a SAS® Dataset" GASP 2020: "Online Winsorization of the Survey of Construction’s Price Estimates" My SESUG 2015 materials can also be found in my project "constrainingarrays" at https://sourceforge.net/projects/constrainingarrays/.

Cellular Automata simulator. Native code (fast) and modular design: update rule, topology, time, measurement, initialization are independant. No GUI (for now...): configuration file (commented default automatically generated) overridable by command line.

Citrus is a library and suite of demo applications for converting numbers with units into numbers with different units.

Clados is a java package that implements a multivector in a Clifford Algebra. Algebras (over real numbers) with any signatures may be used. A calculator and associated documentation is also included to help users learn how things work.

Lightweight Clifford algebra template library

A C++ library for clipping polygons.

CloisterWalk can test your favorite number or will let you choose a number from a list. Many provided numbers are known irrationals, others are still uncertain. Enter the number of steps you would like to walk and click the Go button to produce a graph. If a number does not seem interesting, try switching between the square and hexagonal grids. Can you predict what is going to happen next time you click the Go button? Can you figure out why fractal patterns emerge? Can CloisterWalk be used to test numbers for irrationality? Enjoy!

Stand-alone software tool for the interactive CE analysis of microarray data. The software is a user-friendly and allows on-the-fly study of CE

Goal of Coatie3D project is the development of a 3D graph drawer/ viewer. The purpose of graph drawing is the identification of a pleasant layout for a given graph.

Numerically estimate an efficiency of code construction algorithms. Randomly generate n binary words of length m with minimum Hamming distance d and create a prefix code (= retrieval tree) from them. Based on PhD work.

A Windows C# computer program was written that tested the first 1 trillion numbers for the Collatz Conjecture. See the Wiki page for a description of the math conjecture. https://en.wikipedia.org/wiki/Collatz_conjecture The program tests a number of ways for researching various patterns. A white paper is included that describes various results of the research. Also included are a number of data files of results of the program.

Collatz tool is a little application to find numbers of collatz problem and modified collatz problems. You can modify the collatz factor, count of max. calculations, output. Done with C++ and bigInt Library for arbitrary precision integers.

Colt provides a set of Open Source Libraries for High Performance Scientific and Technical Computing in Java http://acs.lbl.gov/~hoschek/colt/ This project starteda as a port of the Colt core library to C#, but contains additional features.

Combean is a Java framework for mathematical structures and optimization algorithms. Through a set of Java interfaces and JavaBeans-based config, Combean glues optimization codes together - leading to more interoperable, adaptable and flexible solutions.

A program to calculate and create lists of possible variations (permutations) and selections (combinations) of a given set of elements. Creating the cartesian product of two sets is also possible.

STARTING WITH VERSION 2.0, CGSUITE HAS MOVED TO GITHUB. The latest version can be found at the CGSuite homepage: https://www.cgsuite.org/ This page is preserved for archival purposes only and is no longer being maintained.