**GeoGebra 5.0.214.0 + Portable | 113 Mb**

GeoGebra is an open-source utility built specifically for helping users design mathematical objects of several types used for calculus, algebra and geometry. Since this is a Java-based application, you should make sure you have previously installed the working environment on the computer.

**User-friendly interface with clear-cut options**

It sports a clean interface that allows users to create mathematical objects by using dedicated tools or commands. The application offers quick access to different drawing tools that can be inserted in the working pane pretty easily.

GeoGebra gives you the possibility to add points and vectors, and perform calculations with them (for example, you can measure the length of a vector), as well as include lines and axes, conic sections and arcs, curves, inequalities, intervals, and functions.

**Take advantage of a wide array of math functions**

The app provides features for number creation and you can use the ? and Euler constants for expressions and calculations, as well as work with angles, Boolean variables, matrix operations (addition, subtraction, multiplication), embedded text messages and images.

**Customize object properties**

The inserted objects can be hidden or revealed in the graphical representation, filled with a color, as well as fixed to a certain position so you cannot move, redefine or delete them. Plus, it is possible to change the name of an object, label it with its value, create animations with numbers, angles or points, and enable the tracing mode for viewing an object's position.

GeoGebra offers support for two scripting languages (GGBScript and javascript), so you can create a sequence of commands for designing or modifying the objects. What's more, you may record the values for each object in a spreadsheet list, namely numbers, points, and vectors.

The generated projects can be saved to a file (e.g. HTML, PNG, EPS, GIF), on the developer's website, or printed.

**Conclusion**

All in all, GeoGebra comes packed with many dedicated parameters for helping you learn or teach various mathematical objects and operations.

Captions enabled for all objects

New option "Force Reflex Angle" forces angles to be between 180 and 360 degrees

Pressing toggles the focus between the Input Bar and the Graphics View

Improvements to the way translation works

Dynamic colors (Properties -> Advanced tab). Set a function with range [0,1] for each color component (red, green, blue)

Option for the grid to be bold

Thumbnail saved in GGB files.

Worksheets resized if they were saved on a larger screen

Isometric grid

Comparing objects of different types doesn't return an error, can now compare Text and Image objects

If the Points Export_1 and Export_2 exist, they will be used to define the export rectangle (Export_1 and Export_2 must be within the visible area)

Checkbox now consistent across all platforms

Options -> Checkbox Size -> Regular/Large

Perpendicular check added to "Relation between two objects" Tool

Messages from "Relation between two objects" Tool rewritten

Angular Bisector Command and Tool renamed to Angle Bisector

Line Bisector Command and Tool renamed to Perpendicular Bisector

BMP import

Unicode fonts used in LaTeX equations

LaTeX equations exported at full resolution

in SVG and PDF export, option to export text as editable text or shapes. Stores the text either as text (lets you edit the text in eg InkScape) or as bezier curves (ie guaranteed to look the same even if the correct font is not installed).

support for inline equations and linefeeds in LaTeX eg "if x=9 find $ sqrt{ x } $"

Angle entered in rotate dialog box is remembered (if it is in degrees)

Show All Objects in Graphics View menu

Option for up to 15 decimal places

x^0, x^1, x^7, x^8, x^9 now displayed nicely

PGF/TikZ export

added degree symbol to axes units

new command-line parameter: --antiAliasing=off

defines e to be the Euler number when used in expressions (unless it has already been defined to something else)

templates for 2x2 and 3x3 matrix in LaTeX drop-down menu

Option to display numbers as Significant Figures (3,5,10,15)

New options Edit -> Select Descendents/Select Ancestors

Double-click on an object in the Graphics View opens the redefine dialog, which now has a button to open the Properties dialog as well as 'OK' and 'Apply' buttons

"Input Field" renamed to "Input Bar"

"Algebra window" renamed to "Algebra View"

"Graphics window" renamed to "Graphics View"

Algorithm to decide which point to select added (rather than popping up a menu)

Points in the form (a, b), (a + c, b + d) and (a + x(A), b + x(B)) are draggable (the variables a & b are updated accordingly)

Ctrl + to zoom in, Ctrl - to zoom out

New menu option "Recompute all Objects (F9)" which updates all the random numbers

Set point style for lists of points

Set line style for lists of lines

Set filling style for lists of eg circles, polygons

Set text style for lists of texts

Animation of sliders

f'(x) is automatically named f'(x) [ ie you can type just f'(x) rather than f'(x) = f'(x) ]

Shift-right drag will now allow a zoom that allows the aspect ratio to change

you can now set the line thickness of polygons created with eg Sequence[Polygon[(i,i),(i+1,i),(i+1,i+1)],i,1,3]

polygons can now have line thickness 0 (ie no edges)

In Captions, %v is replaced by the value and %n by the name, eg "The value of %n is %v"

Alt-click or F3: copy definition of selected object to the Input Bar

F4: copy value of selected object to the Input Bar

F5: copy name of selected object to the Input Bar

Alt-scroll wheel: accelerated zoom

Alt-dragging a selection rectangle puts a list of the objects selected in the Input Bar

Hold down Alt when drawing a Line, Segment, Ray or Vector forces the angle to be a multiple of 15 degrees

File -> Open shows a preview image when available

Properties -> Color shows the color as an RGB triple in the preview pane eg (0,0,255)

Area[Arc], Perimeter[Arc] work (treating the arc as a segment)

sin(? x) now prints the ? nicely

Objects are now redefined from the input bar eg A = Point[f] then A = (1,2) will now make A a free object

Shift-double-click on a point on line/circle/function/etc in the Algebra View will allow you to set the coordinates without redefining it

Record to Spreadsheet Tool: you can now alt-click on a Point, Vector or Number to have its value(s) copied into columns A and B

\n replaced by newline in texts eg Text["GeoGebra\nRocks",(3,4)]

can't have functions called sin, cos etc

New point styles (plus, diamond, triangles)

Size of the drawing pad in pixels can be obtained with pixelsWidth = x(Corner[5]) and pixelsHeight = y(Corner[5])

Export to Google Gadget and MediaWiki

**SYSTEM REQUIREMENTS**

JAVA JRE.

**New in version 5.0.214.0 (March 13, 2016)**

fix for plotting -z? + 2x y + y = -6

**OS:**ShiChuang All

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