Texas Instruments TINSPIRECX manual Grab and Drag Practice, Changing the Axes, Open-hand cursor

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First Steps with TI-Nspire™

Tutorial 4: Graphing

Grab and Drag Practice

Use the Touchpad to move the arrow around the work area, it behaves exactly like a trackpad on a laptop, so you do not need to press down on the pad just let your finger lightly touch it.

As you move the cursor over the objects in the work area, three things may happen:

•the cursor changes shape

•the underlying object flashes

•labels of the various objects appear, e.g. axes, graph etc.

In some positions two or more screen objects overlap and you are prompted to press the e key to toggle through the labels of various overlapping objects. Move the cursor to the position shown here.

Make certain that the open-hand (÷) icon is showing over the highlighted label for f1(x) and grab the label by pressing and holding x or by pressing /x.

Notice that the fingers of the hand close up ({) indicating that you have successfully grabbed this label. Use the Touchpad to drag the closed-hand icon and the function label to a new position. Click again by pressing x or press d to stop dragging. Being able to grab and drag items is one of the most powerful features of the Graphs. However, some skill and patience is often needed to grab exactly the right item and, without care, mistakes can easily be made.

The open-hand cursor

If you do end up moving the wrong item, remember that /Z or /d can be used to undo the last change. As with a computer /Y can be used to redo.

Changing the Axes

 

Get some more practice at grabbing objects as follows. Move

 

 

to a tick mark on the x-axis such as the one shown here

 

representing x=6. Make certain that you can see the open-

 

hand icon – if you see an upward pointing index finger (ø) you

 

are selecting the axis itself, not just the tick mark.

 

Grab the tick mark and move gently to the left or right

 

watching the effect. Notice that both the x- and y-axes are

 

rescaled.

 

Click again (x) or press d and /d to undo this and

 

Grabbed tick mark on the axes

return to the default set of axis.

 

Now grab the tick mark again and this time hold down the

 

shift key, g, while you move left or right. This time the

 

x-axis is scaled but the y-axis is unchanged.

 

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© 2012 Texas Instruments Education Technology

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Contents First Steps About this document Contents Appendix TI-Nspire CX Keypad Layout Nothing on the screen? TI-Nspire DocumentsMemory Battery Life Charging the handheldHome Screen First Steps with TI-Nspire Tutorial 1 TI-Nspire documents Documents, Problems and Pages ScratchpadNavigating Documents First Steps with TI-Nspire Tutorial 1 TI-Nspire documents Contextual Menus Check list of some key points in Tutorial Calculator Application Basic operationsHistory Lesson Approximate CalculationsTemplates Menu of maths templatesEffect of changed settings Document settings dialog boxGetting Set Ways to define variables Some AlgebraUse of function notation Statistical Distribution Tables Calculator MenuLists of random integers Variables Linked to Documents List of defined variablesMaking Notes Why use Notes?Various text formatting Instructions Recording results Format sub-menu Splitting the ScreenWays to split the screen You must press /e and then b An inserted comment Use of proof template and symbols More Options from the Notes MenuInteractive Notes Use of Q+A template Asking Questions Check list of some key points in Tutorial Graphing Graphs & Geometry Two ViewsGraphing Functions Graphing ViewGrab and Drag Practice Changing the AxesOpen-hand cursor Grabbed tick mark on the axesEditing, Deleting or Hiding a Function Zoom settings Grabbed-sheet iconChanging f2 in the function history Tracing Graphs Points and coordinatesTrace picks out significant points Points of intersectionAnalyse Graph Menu Coordinates and labelled pointsManually Moving Graphs Using SlidersAlternative icons Transformed graph and equation Sequence Plotting Check list of some key points in Tutorial Geometry View for Plane GeometryTwo Parallel Lines Drawing the base of the triangleConstruct the Triangle What’s grabbable?Many options in the Construction menu Making Measurements Variables and TextMeasurement menu Storing the measurement as a variableTidying Up and Using Attributes Dynamic ChangesReady to grab a and slide it Changing the attributes of the triangleArea is now locked Unlocked/Unpinned Points B and C. Try Moving point BCheck list of some key points in Tutorial Lists & Spreadsheet Entering Data as ListsConflict resolution Using FormulaeOne way to enter a formula Typical Spreadsheet Actions Function Tables Capturing DataHand-made function table Simple function table Options for function tables Graph and table side by sideFrequency Charts One and Two Variable Statistics Charts with One VariableShoe Sizes and Hand Spans Charts for Categorical Data Pie Chart displaying categorical dataComparing Boxplots Upper quartile displayedFitting a Line by Hand and Eye Charts with Two VariablesReady to add a 2nd variable Getting the Stats Drawing the Regression LineCalculated regression line Statistics Calculations menu Dragging on the Charts Working with Frequency DataSets of statistics Effect of moving a point from here … … to hereTexas Instruments Education Technology Check list of some key points in Tutorial Draw and Measure a Circle Multiple RepresentationsMeasured circle Setting up a scatter plot Data capture is under way Spreadsheet for Data CaptureTwo Scatterplots Collecting Just a Little DataGo to Town with Data Collection Fit a Straight LineLinear relationship Moving a straight line by hand Not a linear relationshipRegression Different Approach to ScatterplotsBasic quadratic ready for fitting… … and dragged into place
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