Release Notes GeoGebra 4.4

This page gives an overview of the new features in GeoGebra 4.4 since version 4.2. Please see our fully revised Manual document for more detailed descriptions of each new tool and command.

You can install the current stable version of GeoGebra 4.2 by using our Webstart or Download option.

Details about how to run GeoGebra 4.4 are here: https://www.geogebra.org/forum/viewtopic.php?f=70&t=32337

General Features

• new Sign In option to stay signed-in to GeoGebra
• new CAS Engine (Giac) which is much faster and resolves many problems from GeoGebra 4.2
• PSTricks and PGF/Tikz export enhanced with fixes & more objects supported
• HTML worksheet export removed
• (a,1) draggable
• autocreation of sliders from the Input Bar (eg y = a x + b)
• variables highlighted in the Input Bar
• Text Tool: Quotes " replaced with “ or ”.
• Can now set angle properties for lists of angles
• defaults changed: Checkbox and Slider now larger
• angle default can be set to 0°-180°
• automatically updates to latest version (Windows)
• OSX automatic updates offered through Mac App Store
• <Enter> pressed in spreadsheet: don't go down one cell if the cell below is fixed
• Colored objects now supported in TableText[]
• More filling styles

Better GeoGebra Integration

We will be making the interaction between GeoGebra and GeoGebra much more streamlined over the coming year. To start with we now have:

• "Sign in" button so that you can stay signed-in to GeoGebra
• File -> Open from GeoGebra so that you can access and edit your materials and other public materials easily

We will be adding other features soon such as a private files area.

Chrome App & HTML5 Improvements

• works offline
• Spreadsheet View and Algebra View work on GeoGebra
• Graphics 2 works, and you can rearrange views by dragging the title bar
• Navigation Bar works
• CAS View works (to be confirmed)
• Construction Protocol works (to be confirmed)
• Object Properties works (to be confirmed)

New Commands

• Intersect[ <Polynomial Curve>, <Polynomial Curve> ]

finds multiple intersections using a computer algebra method

• Intersect[ <Curve 1>, <Curve 2>, <Parameter 1>, <Parameter 2> ]

finds one intersection using an iterative method starting at the given parameters

• ShortestDistance[ <Path>, <Point> ]
• IFactor[ <Polynomial>]

Factor over the irrationals, eg IFactor[x^2+x-1]

• RunClickScript[ <Object>]
• RunUpdateScript[ <Object>]
• NSolveODE [ <List of Derivatives>, <Initial x-coordinate>, <List of Initial y-coordinates>, <Final x-coordinate> ]

Updated Commands

• Colored objects now supported in the TableText command
• ClosestPoint command now finds closest point (rather than verical point) for functions. This works best for polynomials; for other functions the numerical algorithm is less stable.

New CAS Commands

• CIFactor[ <Expression> ]
• CIFactor[ <Expression>, <Variable> ]

factor over the complex irrationals, eg CIFactor[x^2+x+1]

• IFactor[ <Expression> ]
• IFactor[ <Expression>, <Variable> ]

Factor over the irrationals, eg IFactor[x^2+x-1]

New JavaScript commands

• String evalCommandCAS(String)

 Returns an answer as if the String had been typed into the CAS View.

Description of all GeoGebra JavaScript Methods

GeoGebra's XML File Format

GeoGebra's XML file format is documented at Reference:XML.

License

You are free to copy, distribute and transmit GeoGebra for non-commercial purposes. Please see the GeoGebra license for details: http://www.geogebra.org/download/license.txt

---