Difference between revisions of "Tutorial:Combining Spreadsheet View & Graphics View"
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|3||[[Image:Tool Show Hide Label.gif]]||Show the label of point A in the [[Graphics View]]. | |3||[[Image:Tool Show Hide Label.gif]]||Show the label of point A in the [[Graphics View]]. | ||
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− | |4||[[Image:Tool_Move.gif]]||Change the value of slider a to examine different positions of | + | |4||[[Image:Tool_Move.gif]]||Change the value of slider a to examine different positions of point A. |
− | point A. | ||
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|5||[[Image:Tool_Move_Graphics_View.gif]][[Image:Tool_Zoom_In.gif]][[Image:Tool_Zoom_Out.gif]]||Use tools [[Move Graphics View Tool|Move Graphics View]], as well as [[Zoom In Tool|Zoom In]] and [[Zoom Out Tool|Zoom Out]] to adjust the visible part of the [[Graphics View]] and make point A visible in all positions. | |5||[[Image:Tool_Move_Graphics_View.gif]][[Image:Tool_Zoom_In.gif]][[Image:Tool_Zoom_Out.gif]]||Use tools [[Move Graphics View Tool|Move Graphics View]], as well as [[Zoom In Tool|Zoom In]] and [[Zoom Out Tool|Zoom Out]] to adjust the visible part of the [[Graphics View]] and make point A visible in all positions. |
Revision as of 19:42, 5 March 2012
GeoGebra provides different views of mathematical objects: a Graphics View, a numeric Algebra View and a Spreadsheet View. Thereby, all representations of the same object are linked dynamically and adapt automatically to changes made to any of the representations, no matter how they were initially created.
Spreadsheet Cells Input
In GeoGebra’s Spreadsheet View every cell has a specific name that allows you to directly address each cell. For example, the cell in column A and row 1 is named A1.
You can not only use numbers in spreadsheet cells, but all types of mathematical objects that are supported by GeoGebra (e.g., coordinates of points, functions, lines). If possible, GeoGebra immediately displays the graphical representation of the object you enter into a spreadsheet cell in the Graphics View as well. Thereby, the name of the object matches the name of the spreadsheet cell used to initially create it (e.g., A5, C1). {{note|By default, spreadsheet objects are classified as auxiliary objects in the Algebra View. You can show or hide these auxiliary objects by selecting Auxiliary Objects from the styling bar at the top of the Algebra View.
Record to Spreadsheet
Preparations
- Open a new GeoGebra window.
- Go to Perspectives – Spreadsheet & Graphics.
Construction Steps
1 | Create a slider a with default interval and increment 1. Hint: Select tool Slider and click in the Graphics View to set the position for the slider. In the appearing dialog window change the increment to 1 and click the Apply button.
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2 | Create point A by entering A = (a, 2a) into the Input Bar. Hint: The value of slider a determines the x-coordinate of point A while the y-coordinate is a multiple of this value.
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3 | Show the label of point A in the Graphics View. | |
4 | Change the value of slider a to examine different positions of point A. | |
5 | Use tools Move Graphics View, as well as Zoom In and Zoom Out to adjust the visible part of the Graphics View and make point A visible in all positions. | |
6 | Record the coordinates for different positions of point A to the spreadsheet:
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Relative Copy and Linear Equations
Preparations
- Open a new GeoGebra window.
- Go to Perspectives – Spreadsheet & Graphics.
Construction Steps
1 | Activate tool Move Graphics View and drag the origin of the coordinate system close to the lower left corner of the Graphics View. | |
2 | In the Spreadsheet View, click on cell A1 enter the point coordinates (0, 0). | |
3 | In the Spreadsheet View, click on cell A2 enter the point coordinates (1, 1). | |
4 | Show the labels of both points in the Graphics View. | |
5 | Relative copy the inserted point coordinates to other cells in
column A:
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6 | Use tools Move Graphics View, as well as Zoom In and Zoom Out to adjust the visible part of the Graphics View and make point A visible in all positions. |
Task 1: Examine the coordinates of the point sequence
What sequence of numbers is created if you apply the ‘relative copy’ feature of the GeoGebra spreadsheet the way it is described above?
Task 2: Find the matching equation
Make a prediction about an equation that would create a graph going through all points of this sequence. Enter this equation into the Input bar in order to check your prediction.