Izvorni kôd stranice Comments:Release Notes GeoGebra 4.2

his page gives an overview of the new features in GeoGebra 4.2 since version 4. Please see our fully revised [http://wiki.geogebra.org/en/Manual:Main_Page GeoGebra Help] document for more detailed descriptions of each new tool and command. 

'''GeoGebra 4.2''' can be run from http://www.geogebra.org/download (Webstart) or http://www.geogebra.org/installers (Offline installers)

=Compatibility with GeoGebra 3.2 and GeoGebra 4=
Details about compatibility with old versions can be found here:
http://wiki.geogebra.org/en/Manual:Compatibility

= 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
* {{KeyCode|Alt}}-drag on a parabola to rescale it (keeping the vertex fixed)
* {{KeyCode|Alt}}-drag on a function eg sin(3x+4) to change its period
* 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 / Length Tools (eg Area of c = 3.14) and the Length Tool now finds arc length for sectors & arcs
* String comparison (eg "AA" < "AB" gives true)
* Improved axis labeling when grid is showing
* Ability to lock xAxis:yAxis ratio
* Set defaults for Inequalities
* All the FitXXX commands can be used on freehand functions
* "Share..." button in the Manage Tools dialog to upload Tools (ie .ggt) to GeoGebra 
* Toolbar can now be at the left, right or bottom
* PolyLines can have holes, eg PolyLine[(1, 1), (2, 0), (3, 3.4), (?, ?), (4, 0), (5, 6)]
* Trace dynamic texts (with one variable) to the spreadsheet
* "Select Another" submenu when the user right-clicks on eg 2 Points in the Graphics View
* f(x) =xxx and y=ax+b work without spaces
* bold and italic supported in axis names, eg &lt;i>x&lt;/i> or &lt;b>x&lt;/b>
* Edit -> Insert Image from -> File / Clipboard
* Help -> Report Bug
* "Copy to Input Bar" removed (use {{KeyCode|F4}} instead)
* New "Pin" icon in Stylebar. All objects (except Checkboxes, Buttons & Input Boxes) can be pinned to either Graphics View 1 or Graphics View 2, also available by right-clicking an object
* {{KeyCode|Alt}}dragging a Point on a Path will now take account of the Increment (Object Properties -> Algebra -> Increment)
* Complex numbers are named z_1, z_2, z_3 etc by default (instead of z, w, z_1, w_1, etc)
* "Custom" option for font size (as a percent) in Object Properties
* Input Boxes now show coordinates for Points on Paths / Regions
* Input Boxes can be set to round to decimal places / significant figures
* New option: axis arrows can now be filled, and also can be on both ends of the axes
* Undo/Redo enabled in unsigned applets (with toolbar/menubar showing)
* clicking on a slider will now just move it by one "increment"
* Export to PDF: page size is now determined by the size of the Graphics View (ie it's not always A4)

= Improved Tools =
* [[Translate_by_Vector_Tool|Translate by Vector Tool]]
You can now just drag a shape to translate it
* [[Vector_Polygon_Tool|Vector Polygon Tool]]
This now also accepts a single Polygon as input, and creates an independent copy of it which behaves as a   [[File:Tool Vector Polygon.gif]] '''''vector polygon'''''
* [[Rigid_Polygon_Tool|Rigid Polygon Tool]]
This now also accepts a single Polygon as input, and creates an independent copy of it which behaves as a [[File:Tool Rigid Polygon.gif]] '''''rigid polygon'''''
Also when creating a Rigid Polygon from Points, it now uses [[Vector Command|Vector]] and [[PerpendicularVector Command|PerpendicularVector ]] rather than [[UnitVector Command|UnitVector ]] and [[UnitPerpendicularVector Command|UnitPerpendicularVector ]] which makes it a bit more flexible (For example you can add a slider to the definition of the second point to make it resizeable).
* [[Pen_Tool|Pen Tool]]
This now creates a PolyLine rather than an image. It is designed for writing so remains fixed when you pan/zoom. If you want to use it for geometric shapes etc then you can "unpin" it using the icon in the Style Bar. Right-drag uses the new eraser from the [[Delete Tool|Delete Tool]]
* [[Intersect_Tool|Intersect Tool]]
This now allows intersection of Lines and Parametric Curves
* [[Segment_with_Given_Length_Tool|Segment with Given Length]]
Renamed to ''Segment with Fixed Length''
* [[Delete Tool|Delete Tool]]
As well as clicking to delete, you can now also drag an eraser (rectangle) to erase parts of Pen Strokes (and all other objects). The eraser can be resized in the Style Bar
* [[Rotate around Point Tool|Rotate around Point Tool]]
Now works with objects other than points (eg Polygons)

= New Tools =
* [[Freehand_Shape_Tool|Freehand Shape Tool]]

This Tool lets you either sketch a function, or you can draw a freehand circle, segment or polygon and it will be recognized and converted to an exact shape.

= New Functions =
* psi(x)
The [http://en.wikipedia.org/wiki/Digamma_function Digamma function]
* polygamma(m, x)
The [http://en.wikipedia.org/wiki/Polygamma_function Polygamma function] is the (m+1)th derivative of the natural logarithm of the [http://en.wikipedia.org/wiki/Gamma_function Gamma function, gamma(x)] (m=0,1)
* sinIntegral(x)
The [http://mathworld.wolfram.com/SineIntegral.html Sine Integral] function
* cosIntegral(x)
The [http://mathworld.wolfram.com/CosineIntegral.html Cosine Integral] function
* expIntegral(x)
The [http://mathworld.wolfram.com/ExponentialIntegral.html Exponential Integral] function
* nroot(x, n)
Calculates the nth root of x
* real(x)
Returns the [http://mathworld.wolfram.com/RealPart.html real part] of a complex number
* imaginary(x)
Returns the [http://mathworld.wolfram.com/ImaginaryPart.html imaginary part] of a complex number
* fractionalPart(x)
Returns the [http://mathworld.wolfram.com/FractionalPart.html fractional part] of x
* zeta(x)
Returns the [http://mathworld.wolfram.com/RiemannZetaFunction.html Riemann Zeta Function] of x (real or complex).

= Improved Commands =
* [[Numerator Command|Numerator]] now works for functions of more than one variable
* [[Denominator Command|Denominator]] now works for functions of more than one variable
* [[PartialFractions Command|PartialFractions]] now factors the denominators
* [[Identity Command|Identity]] is now dynamic ie <code>Identity[n]</code> updates if you change '''n'''

= New Commands =
* [[SolveODE Command|SolveODE]][ <f'(x, y)> ]
* [[SolveODE Command|SolveODE]][ <f'(x, y)>, <Point on f> ]
* [[LocusEquation Command|LocusEquation]][ <Locus> ]
* [[LocusEquation Command|LocusEquation]][ <Locus Point>, <Moving Point> ]
* [[Frequency Command|Frequency]][ <List of Text>, <List of Text> ]
* [[ContingencyTable Command|ContingencyTable]][ <List of Text>, <List of Text> ]
* [[ContingencyTable Command|ContingencyTable]][ <List of Text>, <List of Text>, <Options> ]
* [[ContingencyTable Command|ContingencyTable]][ <List of Row Values>, <List of Column Values>, <Frequency Table> ]
* [[ContingencyTable Command|ContingencyTable]][ <List of Row Values>, <List of Column Values>, <Frequency Table> , <Options> ]
* [[VerticalText Command|VerticalText]][ <Text>, <Point> ]
* [[StickGraph Command|StickGraph]][ <List of x-coordinates>, <List of y-coordinates> ]
* [[StickGraph Command|StickGraph]][ <List of points> ]
* [[StickGraph Command|StickGraph]][ <List of x-coordinates >, <List of y-coordinates>, <Boolean Horizontal> ]
* [[StickGraph Command|StickGraph]][ <List of Points>, <Boolean Horizontal> ]
* [[StepGraph Command|StepGraph]][ <List of x-coordinates >, <List of y-coordinates> ]
* [[StepGraph Command|StepGraph]][ <List of Points> ]
* [[StepGraph Command|StepGraph]][ <List of x-coordinates>, <List of y-coordinates>, <Boolean Join> ]
* [[StepGraph Command|StepGraph]][ <List of points>, <Boolean Join> ]
* [[StepGraph Command|StepGraph]][ <List of x-coordinates >, <List of y-coordinates>, <Boolean Join>, <Point style> ]
* [[StepGraph Command|StepGraph]][ <List of Points>, <Boolean Join>, <Point style> ]
* [[BoxPlot Command|BoxPlot]][ <yOffset>, <yScale>, <List of Raw Data>, <Boolean Outliers> ]
* [[BoxPlot Command|BoxPlot]][ <yOffset>, <yScale>, <List of Data>, <List of Frequencies>, <Boolean Outliers> ]
* [[Mean Command|Mean]][ <List of Numbers>, <List of Frequencies> ]
* [[Product Command|Product]][ <List of Numbers>, <List of Frequencies> ]
* [[SD Command|SD]][ <List of Numbers>, <List of Frequencies> ]
* [[SampleSD Command|SampleSD]][ <List of Numbers>, <List of Frequencies> ]
* [[Variance Command|Variance]][ <List of Numbers>, <List of Frequencies> ]
* [[SampleVariance Command|SampleVariance]][ <List of Numbers>, <List of Frequencies> ]
* [[Sum Command|Sum]][ <List of Numbers>, <List of Frequencies> ]
* [[Q1 Command|Q1]][<List of Numbers>, <List of Frequencies> ]
* [[Q3 Command|Q3]][<List of Numbers>, <List of Frequencies> ]
* [[Median Command|Median ]][<List of Numbers>, <List of Frequencies> ]
* [[SigmaXX Command|SigmaXX]][ <List of Numbers>, <List of Frequencies> ]
* [[ChiSquaredTest Command|ChiSquaredTest]][ <Matrix> ]
* [[ChiSquaredTest Command|ChiSquaredTest]][ <List>, <List> ]
* [[ChiSquaredTest Command|ChiSquaredTest]][ <Matrix>, <Matrix> ]
* [[ZProportionTest Command|ZProportionTest ]][ <Sample Proportion>, <Sample Size>, <Hypothesized Proportion>, <Tail> ]
* [[ZProportion2Test Command|ZProportion2Test ]][ <Sample Proportion 1 >, <Sample Size 1>, <Sample Proportion 2 >, <Sample Size 2>, <Tail> ]
* [[ZProportionEstimate Command|ZProportionEstimate ]][ <Sample Proportion >,  <Sample Size >, <Level>]
* [[ZProportion2Estimate Command|ZProportion2Estimate ]][ <Sample Proportion 1>,  <Sample Size 1>, <Sample Proportion 2>, <Sample Size 2>, <Level>]
* [[ZMean2Estimate Command|ZMean2Estimate ]][ <List of Sample Data 1>, <List of Sample Data 2>, < Sigma 1>, < Sigma 2>, <Level>]
* [[ZMean2Estimate Command|ZMean2Estimate ]][ <Sample Mean 1>, <Sigma 1>, <Sample Size 1>, <Sample Mean 2>, <Sigma 2>, <Sample Size 2>, <Level> ]
* [[ZMeanEstimate Command|ZMeanEstimate ]][ <List of Sample Data>, < Sigma >, <Level> ]
* [[ZMeanEstimate Command|ZMeanEstimate ]][ <Sample Mean>, <Sigma>, <Sample Size>, <Level> ]
* [[ZMeanTest Command|ZMeanTest ]][ <List of Sample Data>, <Sigma>, <Hypothesized Mean>, <Tail> ]
* [[ZMeanTest Command|ZMeanTest ]][ <Sample Mean>, <Sigma>, <Sample Size>, <Hypothesized Mean>, <Tail> ]
* [[ZMean2Test Command|ZMean2Test ]][ <List of Sample Data 1>, <Sigma 1>,  <List of Sample Data 2>, <Sigma 2>, <Tail>]
* [[ZMean2Test Command|ZMean2Test ]][ <Sample Mean 1>, <Sigma 1>, <Sample Size 1>, <Sample Mean 2>, <Sigma 2>, <Sample Size 2>, <Tail> ]
* [[CountIf Command|CountIf]][ <Condition>, <Variable>, <List> ]
* [[KeepIf Command|KeepIf]][ <Condition>, <Variable>, <List> ]
* [[ParametricDerivative Command|ParametricDerivative]][ <Curve> ]
* [[Intersect Command|Intersect]][ <Line>, <Parametric Curve> ]
* [[FractionText Command|FractionText]][ <Point> ]
* [[SetSeed Command|SetSeed]][ <Integer> ]
* [[RandomBetween Command|RandomBetween]][ <Min>, <Max>, <Boolean Fixed> ]
* [[AttachCopyToView Command|AttachCopyToView]][ <Object>, <View 0|1|2> ]
* [[AttachCopyToView Command|AttachCopyToView]][ <Object>, <View 0|1|2>, <Point 1>, <Point 2>, <Screen Point 1>, <Screen Point 2> ]
* [[ContinuedFraction Command|ContinuedFraction ]][ <Number>, <Level (Optional)>, <Boolean Shorthand Notation (Optional)> ]
* [[Invert Command|Invert]][ <Function> ]
* [[InverseLogNormal Command|InverseLogNormal ]][ <Mean>, <Standard Deviation>, <Probability> ]
* [[InverseLogistic Command|InverseLogistic ]][ <Mean>, <Scale>, <Probability> ]
* [[ScientificText Command|ScientificText]][ <Number> ]
* [[ScientificText Command|ScientificText]][ <Number>, <Precision> ]
* [[Length Command|Length]][ <Arc> ]
* [[SlopeField Command|SlopeField]][ <f(x,y)> ]
* [[SlopeField Command|SlopeField]][ <f(x,y)>, <Number n> ]
* [[SlopeField Command|SlopeField]][ <f(x,y)>, <Number n>, <Length Multiplier a> ]
* [[SlopeField Command|SlopeField]][ <f(x,y)>, <Number n>, <Length Multiplier a>, <Min x>, <Min y>, <Max x>, <Max y> ]
* [[SetTrace Command|SetTrace]][ <Object>, <Boolean> ]
* [[ShowAxes Command|ShowAxes]][ ]
* [[ShowAxes Command|ShowAxes]][ <Boolean> ]
* [[ShowAxes Command|ShowAxes]][ <View>, <Boolean> ]
* [[ShowGrid Command|ShowGrid ]][ ]
* [[ShowGrid Command|ShowGrid ]][ <Boolean> ] 
* [[ShowGrid Command|ShowGrid ]][ <View>, <Boolean> ]
* [[Flatten Command|Flatten]][ <List of Lists> ]
* [[Cubic Command|Cubic]][ <Point>,<Point>,<Point>,<Number> ]
* [[TriangleCenter Command|TriangleCenter]][ <Point>,<Point>,<Point>,<Number> ]
* [[TriangleCurve Command|TriangleCurve]][ <Point>,<Point>,<Point>,<Equation in A,B,C> ]
* [[Trilinear Command|Trilinear]][ <Point>,<Point>,<Point>,<Number>, <Number>, <Number> ]
* [[Barycenter Command|Barycenter]][ <List of Points>,<List of Weights> ]
* [[SurdText Command|SurdText]][ <Number> ]
* [[SurdText Command|SurdText]][ <Number>, <List> ]
* [[SurdText Command|SurdText]][ <Point> ]
* [[Function Command|Function]][ <List of Numbers> ]
* [[Sort Command|Sort]][<Values>, <Keys> ]
* [[Take Command|Take]][ <List>, <Start Position> ]
* [[Take Command|Take]][ <Text>, <Start Position> ]
* [[ToBase Command|ToBase]][< Number>, <Base>]
* [[FromBase Command|FromBase]][< Number as Text>, <Base>]
* [[GetTime Command|GetTime]][ <Format> ]
* [[CenterView Command|CenterView]][ &lt;Center Point> ]
* [[Locus Command|Locus]][ <Slopefield>, <Point> ] 
* [[Locus Command|Locus]][ <f(x, y)>, <Point> ] 
* [[RigidPolygon Command|RigidPolygon]][ <Polygon> ] 
* [[RigidPolygon Command|RigidPolygon]][ <Polygon>, <Offset x>, <Offset y> ] 
* [[Vertex Command|Vertex]][ <Inequality> ]

== These work in the CAS View and the Input Bar ==

* [[IsPrime Command|IsPrime]][ <Number> ]
* [[NextPrime Command|NextPrime]][ <Number> ]
* [[PreviousPrime Command|PreviousPrime]][ <Number> ]
* [[Divisors Command|Divisors]][ <Number> ]
* [[DivisorsList Command|DivisorsList]][ <Number> ]
* [[DivisorsSum Command|DivisorsSum]][ <Number> ]
* [[nPr Command|nPr ]][ <Number>, <Number> ]
* [[RandomPolynomial Command|RandomPolynomial ]][ <Degree>, <Minimum Coefficient>, <Maximum Coefficient> ]
* [[ImplicitDerivative Command|ImplicitDerivative]][ <f(x, y)> ]
* [[MatrixRank Command|MatrixRank]][<Matrix> ]
* [[LeftSide Command|LeftSide]][ <Equation> ]
* [[RightSide Command|RightSide]][ <Equation> ]
* [[Dimension Command|Dimension]][ <Object> ]
* [[Division Command|Division]][ <Number>, <Number> ]
* [[Division Command|Division]][ <Polynomial>, <Polynomial> ]
* [[ToComplex Command|ToComplex ]][ <Vector> ]
* [[ToPolar Command|ToPolar ]][ <Vector> ]
* [[CommonDenominator Command|CommonDenominator ]][ <Expression>, <Expression> ]
* [[TrigSimplify Command|TrigSimplify]][ <Expression> ]
* [[TrigCombine Command|TrigCombine]][ <Expression> ]
* [[TrigCombine Command|TrigCombine]][ <Expression>, <Target Function> ]
* [[TrigExpand Command|TrigExpand]][ <Expression> ]
* [[TrigExpand Command|TrigExpand]][ <Expression>, <Target Function> ]

=New LaTeX Commands=
* \cr for a linebreak
* \lightviolet
* \lightyellow
* \lightgreen 
* \lightorange
* \yellow
* \darkblue
* \lightpurple
* \lightblue
* \maroon
* \lightgray
* \pink
* \gold
* \black
* \orange
* \indigo
* \purple
* \darkgray
* \green
* \silver
* \white
* \lime
* \gray
* \darkgreen
* \magenta
* \cyan
* \red
* \crimson
* \turquoise
* \blue
* \violet
* \brown
* \aqua

=New Keyboard & Mouse Shortcuts=

* {{KeyCode|Ctrl+Shift+E}}: Open / Close Object Properties View (Note: {{KeyCode|Ctrl+E}} to open still works)
* {{KeyCode|Ctrl+Shift+K}}: Open / Close CAS View
* {{KeyCode|Ctrl+Shift+B}}: Export as HTML5 to the Clipboard
* In Text Tool, {{KeyCode|Alt+&#8592;}}, &nbsp;&nbsp;{{KeyCode|Alt+&#8594;}} to move in/out of formula boxes, {{KeyCode|Alt+Enter}}, &nbsp;&nbsp;{{KeyCode|Alt+&#8593;}}, &nbsp;&nbsp;{{KeyCode|Alt+&#8595;}} to create a new formula box
* {{KeyCode|Alt+R}}: √ (square-root)
* {{KeyCode|Alt+-}}: Superscript minus (changed from GeoGebra 4)
* {{KeyCode|Ctrl+&#8593;}}, &nbsp;&nbsp;{{KeyCode|Ctrl+&#8595;}}, &nbsp;&nbsp;{{KeyCode|Ctrl+&#8592;}}, &nbsp;&nbsp;{{KeyCode|Ctrl+&#8594;}} to rescale axes
* {{KeyCode|Ctrl+&#8593;}}: Opens  the Symbols popup (Input Bar and Input Boxes etc)
Description of all [[Keyboard Shortcuts]]

=New Applet Parameters=
 
Description of all [[Reference:Applet Parameters|GeoGebra Applet Parameters]]

=New Command Line Arguments=

If you use command line arguments, make sure you allocate enough memory, eg:
<br><code> java -Xms32m -Xmx1024m -jar geogebra.jar --export=bitmap.png --dpi=300 spiral.ggb</code>
<br>
<br><code> --export=<File></code> Exports the Graphics View to SVG/PNG/PDF/EMF/EPS as determined by the extension
<br><code> --dpi=<Integer></code> (only used in conjunction with <code>--export</code>)
<br><code>--laf=<system|crossplatform></code> Change the "Look and Feel" of the GUI

Description of all [[Reference:Command Line Arguments|GeoGebra Command Line Arguments]]

=New JavaScript commands=

* drawToImage(label,x[],y[]), clearImage(label) to draw
::{{example|1=<div>Zbynĕk 
:::<code>for(var i=0;i<5;i+=0.07){
:::&nbsp;for(var j=0;j<5;j+=0.07){
:::&nbsp;ggbApplet.setPenColor(j*51,i*51,0);
:::&nbsp;ggbApplet.drawToImage("img1",new Array(i,i),new Array(j,j));
:::&nbsp;}
:::}</code>
:::</div>}}
* 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)
* boolean evalCommand(String cmd, boolean waitForResult)
* public void setListValue(String objName, int index, double x);
  Sets the double value of the specified index of the list. Can be used to extend the size of a list. Note that the index of the first element of the list is 1 not 0
* public double getListValue(String objName, int index);
  Gets the double value of the specified index of the list. Returns NaN if the object is not a numerical or boolean object.

Description of all [[Reference:JavaScript|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 http://www.geogebra.org/download/license.txt]

[[es:Notas_Lanzamiento_de_GeoGebra_4.2]]
[[it:Note_di_versione_di_GeoGebra_4.2]]
[[Category:Release Notes]]