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

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.

Page 28 © 2012 Texas Instruments Education Technology