GeoGebra official Chinese version

The official version of GeoGebra is a completely free dynamic mathematics software similar to a geometric sketchpad. The software has very powerful functions, a simple and clear interface, convenient and fast operation, and a very user-friendly design. The official version of GeoGebra combines "geometry", "algebra" and "calculus". Users can draw points, vectors, line segments, straight lines, polygons, conic sections, and even functions when using it. Friends who need it, don’t miss it!

The official version of GeoGebra supports dozens of languages, supports multiple platforms, and has won multiple international awards. It has very powerful functions. For example, its application in statistics is unmatched by Geometry Sketchpad. In addition, it also has powerful commands and functions. It is definitely a rare teaching assistant software for the majority of mathematics teachers.

Software features

1. Integrate three Chinese tutorials, online help and Wiki links to facilitate Chinese people to get started quickly;

2. Integrate nearly a hundred application examples to facilitate enthusiasts’ experience and reference;

3. Repackage and make the software more in line with the usage habits of Chinese people.

Window introduction

1. Geometry window:

You can use the mouse to perform geometric drawing in the geometric area with the help of the drawing tools provided in the official toolbar of GeoGebra. Select one of the drawing tools from the toolbar and use the tool tips (behind the toolbar) to learn how to use the selected tool. Any object produced in the geometric area has an algebraic character in the algebraic area.

Note: You can use the mouse to drag objects in the geometry area, and the algebraic features in the algebra area will also be dynamically updated at the same time. Each icon in the toolbar represents a tool box. The tool group contains some drawing tools with similar functions. You can open the tool box by pressing the small arrow in the lower right corner of the icon with the left mouse button.

Tip: Drawing tools are classified according to the nature of the objects they produce. For example, different types of points can be generated in the point tool box and the geometric transformation tool box.

2. Algebra window:

You can directly enter algebraic expressions in the Geogebrar command area, and then press the Enter key. The entered algebraic expression will appear in the algebraic area, and the corresponding graphics will appear in the geometry area.

In the algebra area, mathematical objects are classified into free objects and derived objects. If an object is created without using any existing object, it is classified as a free object. If a newly generated object is generated by using other existing objects, it is classified as a derived object.

Tip: If you want to hide features in the algebra area, you can specify the object as an auxiliary object. The method is as follows: In the algebra area, right-click on the object and select "Auxiliary Object" in the right-click menu, or in the pop-up menu Select "Properties", select the label "Basic" in the properties dialog box and place a check mark in the checkbox next to the "Helper Object" option. According to the default of the program, "auxiliary objects" will not appear in the algebra area, but you can select "auxiliary objects" in the "View" menu, and then you can see them in the algebra area.

Objects in the algebraic area can be modified: first confirm that the move tool is selected, and then double-click the object in the algebraic area. You can directly edit the algebraic characteristic data of the object in the text box. After pressing the Enter key, the graphical characteristics of the object will also follow. change. If you double-click a derived object in the algebra area, you can "redefine" the object in the dialog box that appears.

Geogebra also provides many commands. You can press the 'Command' button on the right side of the command area to open the command window table. After selecting a command in the menu (or directly entering the command in the command input box), press the F1 key to obtain The syntax structure of the command and the required parameters and other information.

3. Worksheet window:

In the Geogebra worksheet area, each cell has a designated name, which is used to specify the location of the cell. This is similar to an OFFICE worksheet. For example, the name of the cell in column A, row 1 is A1.

Note: When the cell name is used in an expression or command, the cell name represents the content data in the cell. This process is called cell data reference.

In the worksheet, you can not only enter numerical values, but also all mathematical objects supported by Geogebra, such as point coordinates, functions, commands, etc. For mathematical objects entered in the worksheet, Geogebra will immediately display its graphical characteristics in the geometry area, and the name of the object will correspond to the position in the worksheet, such as A5, C3, etc.

Note: By program default, objects in the worksheet are classified as auxiliary objects in the algebra area.

FAQ

How to draw dotted lines in Geogebra software?

Select the drawn straight line, right click, properties, style, line style

What is GeoGebra

GeoGebra is an open source dynamic mathematics software designed for teaching from elementary school to university. This user manual covers all commands and tools of GeoGebra version 5.0. Now you can choose to use the desktop version, online version or tablet version according to your hardware device and personal preference. There are only a few differences in the interface design between the two.

GeoGebra interface

Various viewing areas and patterns

GeoGebra provides different viewports (View) for different mathematical objects.

Different viewports provide their own toolbars, which contain specific tools, commands, and built-in functions and operators, allowing you to use mathematical objects with different representations to create dynamic structures.

Depending on the type of mathematics you want to process with GeoGebra, you can choose a default perspective (Perspective). For example: Menu view algebra.svg algebraic pattern, Perspectives geometry.svg geometric pattern. Various layouts display viewports and other operations corresponding to that area of ​​mathematics