Revision as of 12:15, 2 May 2012

Running on XO OLPC / Sugar

http://wiki.sugarlabs.org/go/Activities/GeoGebra

CAS View

http://wiki.geogebra.org/en/CAS_View

General

Algebra View: options to sort by Construction Order & by Layer
Settings -> Advanced -> Use Path and Region Parameters: "On" makes Points on objects keep their Path Parameter when the parent object is moved (the behaviour in GeoGebra 4), "Off" makes them stay as close as possible to their old position.
Double-click on a View's title bar to maximize it
Logical implication operator added (-> or→) eg a = false → true
Alt-drag on a parabola to rescale it (keeping the vertex fixed)
When dragging a parabola, the vertex now snaps to grid (if appropriate)
Buttons can be resized, be made bold & italic or include an image
Default polarity for mouse wheel zoom changed
Better (localizable) dynamic texts created by the Area / Perimeter Tools (eg Area of c = 3.14)
String comparison (eg "AA" < AB" gives true)

Improved Tools

Translate Object by Vector Tool

You can now just drag a shape to translate it

New Tools

Freehand Tool

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)

sinIntegral(x)

The Sine Integral function

cosIntegral(x)

The Cosine Integral function

expIntegral(x)

The Exponential Integral function

New Commands

SetTrace[ <Object>, <Boolean> ]
ShowAxes[ ]
ShowAxes[ <Boolean> ]
ShowAxes[ <View>, <Boolean> ]
ShowGrid [ ]
ShowGrid [ <Boolean> ]
ShowGrid [ <View>, <Boolean> ]
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> ]
BarCode[ ]
BarCode[ <Image> ]
BarCode[ "<Text>", "<Format (optional)>" , "<Error Correction (optional)>", <Width (optional)>, <Height (optional)>]
BarCode[ <Number>, "<Format (optional)>" , "<Error Correction (optional)>", <Width (optional)>, <Height (optional)>]

New Keyboard & Mouse Shortcuts

<Ctrl><Shift>E: Open Object Properties View
<Ctrl><Shift>B: Export as GeoGebraWeb to Clipboard
In Text Tool, <Alt>Left, <Alt>Right to move in/out of formula boxes, <Alt>Enter, <Alt>Up, <Alt>Down to create a new formula box

Description of all Keyboard Shortcuts

New Applet Parameters

Description of all GeoGebra Applet Parameters

New Command Line Arguments

If you use command line arguments, make sure you allocate enough memory, eg:
java -Xms32m -Xmx512m -jar geogebra.jar --export=bitmap.png --dpi=300 spiral.ggb

--export=<File> Exports the Graphics View to SVG/PNG/PDF/EMF/EPS as determined by the extension
--dpi=<Integer> (only used in conjunction with --export)

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)
void setPenColor(int red, int green, int blue); values 0 - 255
void setPenSize(int size); sets pen size size in pixels
int getPenSize(); return pen size in pixels
String getPenColor(); returns pen color as RGB hex string (eg #AB1234)

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

es:Notas_Lanzamiento_de_GeoGebra_4.2

@@ Line 32: / Line 32: @@
 The [http://mathworld.wolfram.com/ExponentialIntegral.html Exponential Integral] function
 = New Commands =
+* [[SetTrace Command|SetTrace]][ <Object>, <Boolean> ]
 * [[ShowAxes Command|ShowAxes]][ ]
-  Shows the axes in the active view
 * [[ShowAxes Command|ShowAxes]][ <Boolean> ]
-  Shows/hides the axes in the active view
 * [[ShowAxes Command|ShowAxes]][ <View>, <Boolean> ]
-  Shows/hides the axes in the specified view (View = 1, 2. View = 3 for GeoGebra 5)
 * [[ShowGrid Command|ShowGrid ]][ ]
-  Shows the grid in the active view
 * [[ShowGrid Command|ShowGrid ]][ <Boolean> ]
-  Shows/hides the grid in the active view
 * [[ShowGrid Command|ShowGrid ]][ <View>, <Boolean> ]
-  Shows/hides the grid in the specified view (View = 1, 2. View = 3 for GeoGebra 5)
 * [[Flatten Command|Flatten]][ <List of Lists> ]
 * [[TriangleCenter Command|TriangleCenter]][ <Point>,<Point>,<Point>,<Number> ]
@@ Line 53: / Line 48: @@
 * [[SurdText Command|SurdText]][ <Point> ]
 * [[Function Command|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 Command|BarCode]][ ]
-  Searches for and decodes a barcode from the currently active Graphics View and creates a text if successful.
 * [[BarCode Command|BarCode]][ <Image> ]
-  Searches for and decodes a barcode from the Image and creates a text if successful.
 * [[BarCode Command|BarCode]][ "<'''Text'''>", "<'''Format''' (optional)>" , "<'''Error Correction''' (optional)>", <'''Width''' (optional)>, <'''Height''' (optional)>]
 * [[BarCode Command|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=

Difference between revisions of "Release Notes GeoGebra 4.2"