Release Notes GeoGebra 4.2
From GeoGebra Manual
CAS View
http://wiki.geogebra.org/en/CAS_View
General
- Algebra View: options to sort by Construction Order & by Layer
Improved Tools
You can now just drag a shape to translate it
New Tools
New Functions
- psi(x)
The Digamma function
- polygamma(m, x)
The Polygamma function is the (m+1)th derivative of the natural logarithm of the Gamma function, gamma(x) (m=0,1)
New Commands
- Flatten[ <List of Lists> ]
- TriangleCenter[ <Point>,<Point>,<Point>,<Number> ]
- TriangleCubic[ <Point>,<Point>,<Point>,<Number> ]
- TriangleCurve[ <Point>,<Point>,<Point>,<Equation in A,B,C> ]
- Trilinear[ <Point>,<Point>,<Point>,<Number>, <Number>, <Number> ]
- Barycenter[ <List of Points>,<List of Weights> ]
- SurdText[ <Number> ]
- SurdText[ <Point> ]
- Function[ <List of Numbers> ]
First two elements of list are the min and max x-coordinates and the rest of the numbers are the y-coordinates (evenly spaced between x-min and x-max). Used by the Freehand Tool.
- BarCode[ ]
Searches for and decodes a barcode from the currently active Graphics View and creates a text if successful.
- BarCode[ <Image> ]
Searches for and decodes a barcode from the Image and creates a text if successful.
- BarCode[ "<Text>", "<Format (optional)>" , "<Error Correction (optional)>", <Width (optional)>, <Height (optional)>]
- BarCode[ <Number>, "<Format (optional)>" , "<Error Correction (optional)>", <Width (optional)>, <Height (optional)>]
Creates a barcode from the Text or Number. If the format is not specified then it will be guessed (eg as EAN_8, UPC_A, EAN_13 or QR_CODE) Possible values for Format are "AZTEC", "CODABAR", "CODE_39", "CODE_93", "CODE_128", "DATA_MATRIX", "EAN_8", "EAN_13", "ITF", "PDF_417", "QR_CODE", "RSS_14", "RSS_EXPANDED", "UPC_A". Possible values for Error Correction are "L", "M", "Q", "H".
New Keyboard & Mouse Shortcuts
- <Ctrl><Shift>E: Open Object Properties View
- <Ctrl><Shift>B: Export as GeoGebraWeb to Clipboard
Description of all Keyboard Shortcuts
New Applet Parameters
Description of all GeoGebra Applet Parameters
New Command Line Arguments
Description of all GeoGebra Command Line Arguments
New JavaScript commands
- registerLoggerListener(functionName), unregisterLoggerListener(functionName) to access Vernier Go!Motion USB Logger
- registerPenListener(functionName), unregisterPenListener(functionName) to handle pen tool usage
- drawToImage(label,x[],y[]), clearImage(label) to draw
- String evalGeoGebraCAS(String casCommand)
- String evalGeoGebraCAS(String casCommand, boolean printDebugInfo)
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
