GNU PSPP is a program for the statistical analysis of sampled data. It is a Free replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions. The most important of these exceptions are, that there are no “time bombs”; your copy of PSPP will not “expire” or deliberately stop working in the future. Neither are there any artificial limits on the number of cases or variables which you can use. There are no additional packages to purchase in order to get “advanced” functions; all functionality that PSPP currently supports is in the core package.
      PSPP is a stable and reliable application. It can perform descriptive statistics, T-tests, anova, linear and logistic regression, measures of association, cluster analysis, reliability and factor analysis, non-parametric tests and more. Its backend is designed to perform its analyses as fast as possible, regardless of the size of the input data. You can use PSPP with its graphical interface or the more traditional syntax commands.
      A brief list of some of PSPP's features.
      
        Support for over 1 billion cases
        Support for over 1 billion variables
        Syntax and data files which are compatible with those of SPSS
        A choice of terminal or graphical user interface
        A choice of text, postscript, pdf, opendocument, html or TeX output formats
        Inter-operability with: LibreOffice, Apache OpenOffice, Gnumeric and other free software
        Easy data import from spreadsheets, text files and database sources
        The capability to open, analyse and edit two or more datasets concurrently
        A user interface supporting all common character sets
        The user interface has been translated to multiple languages
        Very fast statistical procedures, even on very large data sets
        No license fees and no expiration period
        No unethical “end user license agreements”
        A fully indexed user manual
        Freedom ensured; It is licensed under the GPLv3 or later
        Portability; Runs on many different computers and many different operating systems
      
      PSPP is particularly aimed at statisticians, social scientists and students requiring fast convenient analysis of sampled data.
      The Flatpak for PSPP includes graphical and command-line interfaces.  To use the command-line interface, run: flatpak run --command=pspp org.gnu.pspp.
    

GNU PSPP

GNU PSPP is a program for statistical analysis of sampled data


      Can't you understand Color Code? This app converts to the resistance value from the color
      code.
    
    

Color Code


      OrbVis is a tool used to view and propagate the full CelesTrak satellite catalog in realtime.
    
    

OrbVis


      LabPlot is a FREE, open source and cross-platform Data Visualization and Analysis software accessible to everyone.
    
      
      LabPlot provides an easy way to create, manage and edit plots. It allows you to produce plots based on data from a spreadsheet or on data imported from external files. Plots can be exported to several pixmap and vector graphic formats.
    
    

LabPlot

Interactive Data Visualization and Analysis

SciDAVis is a free interactive application aimed at data analysis and publication-quality plotting. It combines a shallow learning curve and an intuitive, easy-to-use graphical user interface with powerful features such as scriptability and extensibility. SciDAVis runs on GNU/Linux, Windows and MacOS X; possibly also on other platforms like *BSD, although this is untested.SciDAVis is similar in its field of application to proprietary Windows applications like Origin and SigmaPlot as well as free applications like QtiPlot, Labplot and Gnuplot.What sets SciDAVis apart from the above is its emphasis on providing a friendly and open environment (in the software as well as the project) for new and experienced users alike. Particularly, this means that we will try to provide good documentation on all levels, ranging from user’s manual over tutorials down to and including documentation of the internal APIs We encourage users to share their experiences on our forums and on our mailing lists.More information, including screenshots, reviews, current contributors can be found on the SourceForge project webpage.

SciDAVis

Application for scientific data analysis and visualization

A practical tool to foresee the result of calculus exercises.Compute derivativesCompute integralsPlot the original expression and result within a given rangeIf you are interested, open an issue in github to update a translation or make a pull request.

Calculus


       Zoom and pan around a fractal in
       real time. It can display the animated fractals.
       It displays the Mandelbrot set or many other fractals and
       allows you to zoom smoothly into the fractal. Various coloring
       modes are provided for both the points inside and outside the
       selected set. In addition, switching between Mandelbrot and Julia
       fractal types is provided.
       Other features include autopilot mode, palette changing,
       image saving, fractal inversion, filters, and a built in fractal
       tutorial.
    
    

XaoS


      wxMaxima is a graphical user interface for the computer algebra system Maxima:
      a program that solves mathematical problems by manipulating
      equations (and outputting the resulting formula), instead of just
      calculating a number. wxMaxima eases the use of Maxima by making
      most of its commands available through a menu system and by
      providing input dialogs for commands that require more than one
      argument. It also implements its own display engine that outputs
      mathematical symbols directly instead of depicting them with
      ASCII characters.
    
      
      wxMaxima also features 2D and 3D inline plots, simple animations,
      mixing of text and mathematical calculations to create documents,
      exporting of input and output to TeX, document structuring and a
      browser for Maxima's manual including command index and full text
      searching.
    
    

wxMaxima

A graphical user interface for Maxima, a powerful computer algebra system

Advertisement: This package contains only TexLive, a spell checker (Hunspell) and a version control. Via addons you can add support for LilyPond, Sweave and Knitr. After installation you must reconfigure, Tools-&gt;ReconfigureLyX combines the power and flexibility of TeX/LaTeX with the ease of use of a graphical interface. This results in world-class support for creation of mathematical content (via a fully integrated equation editor) and structured documents like academic articles, theses, and books. In addition, staples of scientific authoring such as reference list and index creation come standard. But you can also use LyX to create a letter or a novel or a theatre play or film script. A broad array of ready, well-designed document layouts are built in.LyX is for people who want their writing to look great, right out of the box. No more endless tinkering with formatting details, “finger painting” font attributes or futzing around with page boundaries. You just write. On screen, LyX looks like any word processor; its printed output — or richly cross-referenced PDF, just as readily produced — looks like nothing else.


     PyMOL is one of a few open-source visualization tools available
     for use in structural biology. The Py portion of the software's
     name refers to the fact that it extends, and is extensible by the
     Python programming language.
   
      
     PyMOL has the ability to load, manipulate and visualize molecules
     from a variety of formats and sources.  The program can easily be
     controlled using a menu-driven GUI, or from a large number of
     commands and/or scripts.  A built-in raytracer is available to
     generate high-quality images of the views generated in the GL
     portion of the GUI.
   
      
     PyMOL uses OpenGL Extension Wrangler Library (GLEW) and Freeglut,
     and can solve Poisson–Boltzmann equations using the Adaptive
     Poisson Boltzmann Solver (apbs).
  
      
    Install this application to view, analyze, and prepare graphics
    images of proteins and experimental strucural data
    (e.g. crystallographic, NMR and electron microscopy based).
  
    

Python Molecular Graphics

KAlgebra is an application that can replace your graphing calculator. It has numerical, logical, symbolic, and analysis features that let you calculate mathematical expressions on the console and graphically plot the results in 2D or 3D. KAlgebra is rooted in the Mathematical Markup Language (MathML); however, one does not need to know MathML to use KAlgebra.
    

KAlgebra

InVesalius generates 3D medical imaging reconstructions based on a sequence of 2D DICOM files acquired with CT or MRI equipments. InVesalius is internationalized (currently available in English, Portuguese, French, Spanish, Turkish, Italian, Czech, Japanese, Catalan, Korean, Romanian and German) and provides several tools:DICOM support including: (a) ACR-NEMA version 1 and 2; (b) DICOM version 3.0 (including various encodings of JPEG -lossless and lossy-, RLE)Image manipulation features (zoom, pan, rotation, brightness/contrast, etc)Segmentation based on 2D slicesPre-defined threshold ranges according to tissue of interestSegmentation based on watershedRegion growing segmentationEdition tools (similar to Paint Brush) based on 2D slicesSemi-automatic segmentation based on Watershed3D surface creation3D surface connectivity tools3D surface exportation (including: binary STL, OBJ, VRML, Inventor)High-quality volume rendering projectionPre-defined volume rendering presetsVolume rendering crop planePicture exportation (including: BMP, TIFF, JPG, PostScript, POV-Ray)Minimum, Maximum or Mean Intensity Projection, Maximum Intensity Difference Accumulation and Contour based visualizations

InVesalius

3D medical imaging reconstruction software

Viking is a free/open source program to manage GPS data.Viking includes the following features:Import GPX, TCX, KML and KMZ filesExport to GPX and KMZ filesImport and Export numerous file types via GPSBabelCreate and edit Tracks, Routes and WaypointsShow OpenTopoMap, OpenStreetMap(OSM) Maps and various other Maps from online providersShow Generic Map Images with World File definitionsUpload/Download OSM TracesGeotag ImagesFollow Realtime GPS PositionVisualization and StatisticsDigitial Elevation Model (DEM) SupportOSRM Routing Support

Viking

Genius is a general purpose calculator program similar in some aspects to BC, Matlab, Maple or Mathematica. It is useful both as a simple calculator and as a research or educational tool. The syntax is very intuitive and is designed to mimic how mathematics is usually written. GEL is the name of its extension language, it stands for Genius Extension Language, clever isn't it? In fact, many of the standard genius functions are written in GEL itself.What can it do?Arbitrary precision integers, multiple precision floats.Complex numbers, stored in Cartesian coordinates as usual.Math-like-looking expressions, tries to be as much a what-you-mean-is-what-Genius-understands, up to a limit of course.Matrix calculations / Linear Algebra, with many related functions.Number theory.Calculus, numerical and even very limited symbolic calculations.Statistics, all the basic statistical functions.Numerical equation solving, polynomial roots, etc...Combinatorics.Most common elementary / trigonometric functions.Modular arithmetic, including inversions and modular arithmetic on matrices.A complete programming language, with automatic typing. In fact large part of Genius standard library is written in GEL.2D Function line plots, standard 2D graphs of up to 10 functions at once, with possibility to export to EPS or PNG.Parametric plots, with possibility to export to EPS or PNG.3D Function surface plots, with possibility to export to EPS or PNGSlopefield/Vectorfield plotting.GUI IDE where you can edit and run/test your programs.Can output matrices in LaTeX, Troff (eqn) or MathML, this is I think a very cool feature that allows you to copy stuff directly from Genius to a document in LaTeX, troff or MathML.

Genius

Genius is a general purpose calculator program

Setzer lets you Write LaTeX documents with an easy to use yet full-featured editor.Features include:Buttons and shortcuts for many LaTeX elements and special charactersComfortable document creation wizardDark modeHelpful error messages in the build logLooks great on the Gnome desktopGood screen to content ratioArguably the best .pdf viewer of any LaTeX editor

Setzer

GElectrical is a free and opensource electrical system analysis software for LV/MV electrical distribution networks.Following features are currently implemented.Schematic capture.Pandapower network generation from schematic.Power flow time series analysis (Symmetric and Assymetric).Voltage drop analysis.Short circuit analysis (Symmetric and SLG).Coordination analysis for power supply protection devices with support for CB and fuse protection curves; damage curves for transformers, cables and motors.Support for daily load curves for load elements.Support for arriving network parameters for custom geometry OH lines.Electrical rules check for checking conformity with IEC/ local electrical guidelines.Print and export of drawings to pdf.Generation of analysis reports.GElectrical uses pandapower as the backend for implementing power flow related functionality like voltage drop and short circuit analysis.Please note that the program is in active development and bugs are expected. Cross checking of generated calculations is reccomended.

GElectrical

Electrical distribution network design and analysis


      AlphaPlot is an open-source computer program for interactive scientific graphing and data 
      analysis. It can generate different types of 2D and 3D plots (such as line, scatter, bar, 
      pie, and surface plots) from data that is either imported from ASCII files, entered by hand, 
      or using formulas.
    
    

AlphaPlot

AlphaPlot is a free application for Scientific Data Analysis and Visualization

ParaView is an open-source, multi-platform data analysis and visualization application. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. The data exploration can be done interactively in 3D or programmatically using ParaView’s batch processing capabilities.ParaView was developed to analyze extremely large datasets using distributed memory computing resources. It can be run on supercomputers to analyze datasets of exascale size as well as on laptops for smaller data.

ParaView

Gephi is the leading open-source platform for visualizing and manipulating large graphs.(null)Example datasets can be found on our wiki: https://github.com/gephi/gephi/wiki/DatasetsLocalization is available in English, French, Spanish, Japanese, Russian, Brazilian Portuguese, Chinese, Czech and German.

Gephi

OSCAR is PC software developed for reviewing and exploring data produced by CPAP and related machines used in the treatment of sleep apnea.
    

OSCAR

ARX is a comprehensive open source software for anonymizing sensitive personal data. It supports a wide variety of (1) privacy and risk models, (2) methods for transforming data and (3) methods for analyzing the usefulness of output data.The software has been used in a variety of contexts, including commercial big data analytics platforms, research projects, clinical trial data sharing and for training purposes.ARX is able to handle large datasets on commodity hardware and it features an intuitive cross-platform graphical user interface.ARX features a cross-platform graphical tool, which supports data import and cleansing, wizards for creating transformation rules, intuitive ways for tailoring the anonymized dataset to your requirements and visualizations of data utility and re-identification risksARX is also available as a comprehensive software library with a clean API that delivers data anonymization capabilities to any Java program. The underlying principles, methods, algorithms and data structures have been published in peer-reviewed journals and conference proceedingsARX is not just a tool box, but a fully fledged application. All methods have been carefully selected and tightly integrated with each other. ARX provides compatibility with SQL databases, MS Excel and CSV files. Moreover, it supports data cleansing and can handle incomplete and dirty data


      KBibTeX is a reference management application which can be used to collect TeX/LaTeX bibliographies and export them in various formats.
    
      KBibTeX can do the following things:
      
        Preview bibliography entries in various formats (Source (BibTeX), Source (RIS), Wikipedia, standard (XML/XSLT), fancy (XML/XSLT), and abstract-only (XML/XSLT)). Additional preview styles become available when bibtex2html is installed.
        Import data in various bibliography file formats such as BibTeX, RIS and ISI (requires bibutils) and export data to PDF (requires pdflatex), PostScript (requires latex), RTF (requires latex2rtf), and HTML.
        Search for the bibliography entries data in online databases (e.g. Google Scholar, ACM, IEEE, arXiv, etc.)
        Preview local or remote (online) resources, e.g. PDF files, linked in the BibTEX entry.
        Find and merge duplicate entries in bibliography.
        Integrate your bibliographies with LaTeX editors such as Kile and LyX.
        Import your Zotero library.
      
    

KBibTeX

BibTeX editor by KDE to edit bibliographies used with LaTeX


           SUMO allows modelling of intermodal traffic systems including road vehicles, public transport and pedestrians.
           Included with SUMO is a wealth of supporting tools which handle tasks such as route finding, visualization,
           network import and emission calculation. SUMO can be enhanced with custom models and provides various APIs
           to remotely control the simulation.
        
    

SUMO


      Personal Health Record - PHR.
    
    

MyGNUHealth

A program to manage your blood pressure data locally and privately, without the constraints of the manufacturer's cloud.The following features are implemented:enter data manually or read directly from supported blood pressure monitors via cable or Bluetoothmigrate existing data from manufacturer's softwareimport/export data from/to csv, json, xml, pdf and sqliteview data as graph, table or statisticanalyse data with SQL queriesprint data or e-mail it directly to the doctorAnd much more...

Universal Blood Pressure Manager

Gwyddion is a modular program for SPM (scanning probe microscopy) data visualization and analysis. Primarily it is intended for the analysis of height fields obtained by scanning probe microscopy techniques (AFM, MFM, STM, SNOM/NSOM) and it supports a lot of SPM data formats. However, it can be used for general height field and (greyscale) image processing, for instance for the analysis of profilometry data or thickness maps from imaging spectrophotometry.Gwyddion provides a large number of data processing functions, including all the standard statistical characterization, levelling and data correction, filtering or grain marking functions. And since the developers are active SPM users, the program also contains a number of specific, uncommon, odd and experimental data processing methods they found useful – and you may find them useful too.

Gwyddion

Program for SPM (scanning probe microscopy) data visualization and analysis


      Xnec2c is a high-performance multi-threaded electromagnetic simulation
      package to model antenna near- and far-field radiation patterns for
      Linux and UNIX operating systems. The original FORTRAN version of NEC2
      was ported to C by Neoklis Kyriazis, 5B4AZ and released as nec2c. Later
      he wrote xnec2c, a graphical interface for ease of use with many more
      features.
    
    

xnec2c

A multi-threaded EM tool based on NEC2 to model antenna radiation patterns

BKChem supports bond-bybond trying with templates. It supports linear fomulars, and a subset of SMILES as well as InChI. Arrows, rich text, color, charges, radicals and simple vector shapes can be used. It has aligning, unlimited undo/redo, rotation features. Export to SVG, OpenOffice Draw, ODF, EPS, PDF and PNG is possible. Basic support for CML1 and CML2 as well as Molfiles is available.
    

BKChem

QSpeakers is a simple graphical program that simulates common acoustical enclosures behaviour to help designing loudspeaker systems, based on the loudspeaker driver's Thiele / Small parameters and the chosen enclosure type.This software is mostly useful for do-it-yourself loudspeaker enthusiasts, acoustics teaching, and to a lesser extent, for loudspeaker engineering.

QSpeakers

Cantor is a front-end to powerful mathematics and statistics packages. Cantor integrates them into the KDE Platform and provides a nice, worksheet-based, graphical user interface. It supports environments for KAlgebra, Lua, Maxima, R, Sage, Octave, Python, Scilab, and Qalculate!
    

Sciéncia