HP Prime Graphing Wireless Calculator - Manual (Page 16)

12 Geometry
derivative of 3sin(x). Tap point B and then press E
to deselect it.
Plot view in detail
In Plot view you can directly
draw objects on the screen
using various drawing tools.
For example, to draw a
circle, tap
, tap
Curve, and then select
Circle. Now, tap where
you want the center of the
circle to be and press
E . Next, tap a point that is to be
on the circumference and press E . A circle is drawn
with a center at the location of your first tap, and with a radius
equal to the distance between your first tap and second tap.
Note that there are on-screen instructions to help you. These
instructions appear near the bottom of the screen, next to the
command listing for the active tool (circle, point, and so on).
You can draw any number of geometric objects in Plot view.
See “Plot view: Cmds menu” on page 23 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 finished drawing objects of a particular type,
deselect the drawing tool by pressing
J . 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 page 20).
Selecting objects Selecting an object involves at least two steps: tapping the
object and pressing
E . Pressing E is necessary
to confirm 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