HP Prime Graphing NW280AAABA manual Clearing an, Clearing all, Objects, Moving about, Zooming

Clearing an	To clear one object, select it and tap C. Note that an object
object	is distinct from the points you entered to create it. Thus
	deleting the object does not delete the points that define it.
	Those points remain in the app. For example, if you select a
	circle and press C, the circle is deleted but the center point
	and radius point remain.
	If you tap Cwhen no
	object is selected, a list of
	objects appears. Tap on the
	one you want to delete. (If
	you don’t want to delete an
	object, press Jto close
	the list.) If other objects are
	dependent on the one you
	have selected for deletion, you will be asked to confirm your
	intention. Tap	to do so, otherwise tap		.
	Note that points you add to an object once the object has
	been defined are cleared when you clear the object. Thus if
	you place a point (say D) on a circle and delete the circle, the
	circle and D are deleted, but the defining points—the center
	and radius points—remain.
Clearing all	To clear the app of all geometric objects, press SJ. You
objects	will be asked to confirm your intention to do so. Tap
	to clear all objects defined in Symbolic view or			to keep
	the app as it is. You can clear all measurements and
	calculations in Numeric view in the same way.
Moving about	You can pan by dragging a finger across the screen: either
the Plot view	up, down, left, or right. You can also use the cursor keys to
	pan once the cursor is at the edge of the screen.
Zooming	You can zoom by tapping		and choosing a zoom
	option. The zoom options are the same as you find in the Plot
	view of many apps in the calculator (see “Zoom” on
	page 88).

Geometry 145