Geometric objects

The geometric objects discussed in this section are those that can be created in Plot view. Objects can also be created in Symbolic view—more, in fact, than in Plot view—but these are discussed in “Geometry functions and commands” on page 165.

In Plot view, you choose a drawing tool to draw an object. The tools are listed in this section. Note that once you select a drawing tool, it 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 circles). To deselect the current drawing tool, press J. (You can tell if a drawing tool is still active by the presence of on-screen help in the top left-side corner of the screen, help such as Hit Point 1.)

The steps provided in this section are based on touch entry. For example, to add a point, the steps will tell you to tap on the screen where you want the point to be and press E. However, you can also use the cursor keys to position the cursor where you want the point to be and then press E.

The drawing tools for the geometric objects listed in this section can be selected from the menu buttons at the bottom of the screen. Some objects can also be entered using a keyboard shortcut. For example, you can select the triangle drawing tool by pressing n. (Keyboard shortcuts are only available if they have been turned on in Plot Setup view. See page 146.)

Points

Tap

to display a menu and submenus of options for

 

entering various types of points. The menus and submenus

 

are:

 

Point

Tap where you want the point to be and press E.

 

Keyboard shortcut: B

Point On

Tap the object where you want the new point to be and press

 

E. If you select a point that has been placed on an

 

object and then move that point, the point will be constrained

 

to the object on which it was placed. For example, a point

Geometry

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Image 157
HP Prime Graphing NW280AAABA manual Geometric objects, Points