HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 206)

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You can draw any number of geometric objects in Plot view. See Plot view: Cmds menu on page 170 for a list

of the objects you can draw. The drawing tool you choose—line, circle, hexagon, and so on—remains selected

until you deselect it. This enables you to quickly draw a number of objects of the same type (such as a number

of hexagons). After you have nished drawing objects of a particular type, deselect the drawing tool by

pressing . You can tell if a drawing tool is still active by the presence of the on-screen instructions and

the command name at the bottom of the screen.

An object in Plot view can be manipulated in numerous ways, and its mathematical properties can be easily

determined (see Listing all objects on page 169).

Selecting objects

Selecting an object involves at least two steps: tapping the object and pressing . Pressing

is necessary to conrm your intention to select an object.

When you tap a location, objects recognized as being under the pointer are colored light red and added to the

list of objects in the bottom right corner of the display. You can select any or all of these objects by pressing

. You can tap the screen and then use the cursor keys to accurately position the pointer before

pressing .

When more than one object is recognized as being under the pointer, in most cases, preference is given to any

point under the pointer when is pressed. In other cases, a pop-up box appears enabling you to

select the desired objects.

You can also select multiple objects using a selection box. Tap and hold your nger at the location on the

screen that represents one corner of the selection rectangle. Then drag your nger to the opposite corner of

the selection rectangle. A light blue selection rectangle is drawn as you drag. Objects that touch this rectangle

are selected.

Hiding names

You can choose to hide the name of an object in Plot view:

1. Select the object whose label you want to hide.

Tap or press .

3. Select Hide Label.

Redisplay a hidden name by repeating this procedure and selecting Show Label.

Moving objects

There are many ways to move objects. First, to move an object quickly, you can drag the object without

selecting it.

Second, you can tap an object and press to select it. Then, you can drag the object to move it

quickly or use the cursor keys to move it one pixel at a time. With the second method, you can select multiple

objects to move together. When you have nished moving objects, tap a location where there are no objects

158 Chapter 9 Geometry

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