KAlgebra

Last updated
KAlgebra
Developer(s) KDE
Initial release2005;19 years ago (2005)
Stable release
20.04.2 [1] / 11 June 2020;3 years ago (11 June 2020)
Repository
Written in C++ (Qt)
Type Educational, mathematical, graphing calculator
License GPL-2.0-or-later
Website apps.kde.org/kalgebra

KAlgebra is a mathematical graph calculator included in the KDE education package. [2] While it is based on the MathML content markup language, knowledge of MathML is not required for use. The calculator includes numerical, logical, symbolic, and analytical functions, and can plot the results onto a 2D or 3D graph. KAlgebra is free and open source software, licensed under the GPL-2.0-or-later license.

Contents

KAlgebra has been mentioned by various media sources as free / open source educational programs. [3] [4]

User interface and syntax

Cosine function in the Dictionary view. Kalgebra-dictionary-window.png
Cosine function in the Dictionary view.

KAlgebra uses an intuitive algebraic syntax, similar to those used on modern graphing calculators. User-entered expressions are converted to MathML in the background, or they can be entered directly. The program is divided into four views, Console, 2D Graph, 3D Graph, and Dictionary. A series of calculations can be performed with user-defined scripts, which are macros that can be reused and shared.

The dictionary includes a comprehensive list of all built-in functions in KAlgebra. Functions can be looked up with parameters, examples, formulas and sample plots. Over 100 functions and operations are currently supported.

Graphing and dictionary

3D graph demonstrating the sombrero function. Kalgebra-3dgraph.png
3D graph demonstrating the sombrero function.

In the 2D and 3D graph views, functions can evaluated and plotted. Currently KAlgebra only supports 3D graphs explicitly dependent only on the x and y. Both views support defining the viewpoint. The user can hover their cursor over a line and find the exact X and Y values for 2D graphs, as well as create a live tangent line.

In the 3D view, the user can control the viewpoint position with the keyboard's arrow keys, and zooming in and out is done with the W and S keys respectively. The user can also draw lines and make dots on the 3D graph and export the graph in various formats.

Related Research Articles

<span class="mw-page-title-main">MATLAB</span> Numerical computing environment and programming language

MATLAB is a proprietary multi-paradigm programming language and numeric computing environment developed by MathWorks. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages.

gnuplot Command-line and GUI plotting program

gnuplot is a command-line and GUI program that can generate two- and three-dimensional plots of functions, data, and data fits. The program runs on all major computers and operating systems . Originally released in 1986, its listed authors are Thomas Williams, Colin Kelley, Russell Lang, Dave Kotz, John Campbell, Gershon Elber, Alexander Woo "and many others." Despite its name, this software is not part of the GNU Project.

<span class="mw-page-title-main">TI-89 series</span> Series of graphing calculators

The TI-89 and the TI-89 Titanium are graphing calculators developed by Texas Instruments (TI). They are differentiated from most other TI graphing calculators by their computer algebra system, which allows symbolic manipulation of algebraic expressions—equations can be solved in terms of variables, whereas the TI-83/84 series can only give a numeric result.

<span class="mw-page-title-main">Maple (software)</span> Mathematical computing environment

Maple is a symbolic and numeric computing environment as well as a multi-paradigm programming language. It covers several areas of technical computing, such as symbolic mathematics, numerical analysis, data processing, visualization, and others. A toolbox, MapleSim, adds functionality for multidomain physical modeling and code generation.

<span class="mw-page-title-main">Windows Calculator</span> Calculator application included in Microsoft Windows

Windows Calculator is a software calculator developed by Microsoft and included in Windows. In its Windows 10 incarnation it has four modes: standard, scientific, programmer, and a graphing mode. The standard mode includes a number pad and buttons for performing arithmetic operations. The scientific mode takes this a step further and adds exponents and trigonometric function, and programmer mode allows the user to perform operations related to computer programming. In 2020, a graphing mode was added to the Calculator, allowing users to graph equations on a coordinate plane.

<span class="mw-page-title-main">Grapher</span> Graphing calculator software bundled with macOS

Grapher is a computer program bundled with macOS since version 10.4 that is able to create 2D and 3D graphs from simple and complex equations. It includes a variety of samples ranging from differential equations to 3D-rendered Toroids and Lorenz attractors. It is also capable of dealing with functions and compositions of them. One can edit the appearance of graphs by changing line colors, adding patterns to rendered surfaces, adding comments, and changing the fonts and styles used to display them. Grapher is able to create animations of graphs by changing constants or rotating them in space.

<span class="mw-page-title-main">3D GameStudio</span>

3D GameStudio or 3DGS is a pan 3D computer game development system which allows the users to create 3D games and other virtual reality applications, and publish them royalty-free. It includes a model/terrain editor, a level editor, a script editor/debugger and comes with a big collection of textures, models and artwork, as well as a game template system that allows the creation of basic shooter games or RPGs without programming. For complex games or other applications, either the integrated programming language named Lite-C or an external development language such as Visual C++ or Borland Delphi can be used.

<span class="mw-page-title-main">LabPlot</span> Application for interactive graphing and analysis of scientific data

LabPlot is a free software cross-platform computer program for interactive scientific graphing and data analysis, written mainly for the KDE desktop for Unix-like operating systems, and later available for Microsoft Windows. It is similar to Origin, and is able to import Origin's data files.

<span class="mw-page-title-main">QtiPlot</span>

QtiPlot is a cross-platform computer program for interactive scientific graphing and data analysis. It is similar to Origin or SigmaPlot.

<span class="mw-page-title-main">Xcas</span> Computer algebra system

Xcas is a user interface to Giac, which is an open source computer algebra system (CAS) for Windows, macOS and Linux among many other platforms. Xcas is written in C++. Giac can be used directly inside software written in C++.

<span class="mw-page-title-main">SciDAVis</span>

SciDAVis is an open-source cross-platform computer program for interactive scientific graphing and data analysis. Development started in 2007 as fork of QtiPlot, which in turn is a clone of the proprietary program Origin.

<span class="mw-page-title-main">KDE Education Project</span>

The KDE Education Project develops free educational software based on the KDE technologies for students and parents. These educational software is translated into more than 65 languages, so that users can access them without any problems. The KDE-Edu project also provides free software educational to support and facilitate teachers in planning lessons.

<span class="mw-page-title-main">Cantor (software)</span>

Cantor is a free software mathematics application for scientific statistics and analysis. It is part of the KDE Software Compilation 4, and was introduced with the 4.4 release as part of the KDE Education Project's kdeedu package.

QML is a user interface markup language. It is a declarative language for designing user interface–centric applications. Inline JavaScript code handles imperative aspects. It is associated with Qt Quick, the UI creation kit originally developed by Nokia within the Qt framework. Qt Quick is used for mobile applications where touch input, fluid animations and user experience are crucial. QML is also used with Qt3D to describe a 3D scene and a "frame graph" rendering methodology. A QML document describes a hierarchical object tree. QML modules shipped with Qt include primitive graphical building blocks, modeling components, behavioral components, and more complex controls. These elements can be combined to build components ranging in complexity from simple buttons and sliders, to complete internet-enabled programs.

<span class="mw-page-title-main">Desmos</span> Browser-based graphing calculator

Desmos is an advanced graphing calculator implemented as a web application and a mobile application written in TypeScript and JavaScript.

<span class="mw-page-title-main">KmPlot</span>

KmPlot is a mathematical function plotter for the KDE Desktop. It has a powerful built-in parser. The graphs can be colorized and the view is scalable, so that you are able to zoom to the level you need. Users can plot different functions simultaneously and combine them to build new functions. It also provides some numerical and visual features like:

<span class="mw-page-title-main">KDE Gear</span> Set of applications and supporting libraries

The KDE Gear is a set of applications and supporting libraries that are developed by the KDE community, primarily used on Linux-based operating systems but mostly multiplatform, and released on a common release schedule.

<span class="mw-page-title-main">Casio Algebra FX Series</span> Series of Casio graphing calculators

The Casio Algebra FX series was a line of graphing calculators manufactured by Casio Computer Co., Ltd from 1999 to 2003. They were the successor models to the CFX-9970G, the first Casio calculator with computer algebra system, or CAS, a program for symbolic manipulation of mathematical expressions. The calculators were discontinued and succeeded by the Casio ClassPad 300 in 2003.

References

  1. "Release 20.04.2". 11 June 2020. Retrieved 16 June 2020.
  2. Joey Bernard (September 13, 2018). "A Look at KDE's KAlgebra". Linux Journal . 9 (290): 29–34.
  3. "Hebat, Kabupaten Kendal Rilis OS Lokal". 8 January 2010.
  4. "KDE SC 4.4 Beta1 veröffentlicht".