HP Prime Graphing Wireless Calculator - Manual (Page 19)

Geometry 15
circle and D are deleted, but the defining points—the center
and radius points—remain.
Clearing all
objects
To clear the app of all geometric objects, press SJ . You
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.
Gestures in Plot
view
You can pan by dragging a finger across the screen: either
up, down, left, or right. You can also use the cursor keys to
pan once the cursor is at the edge of the screen. You can use
a pinch gesture to zoom in or out. Place two fingers on the
screen. Move them apart to zoom in or bring them together
to zoom out. You can also press + to zoom in on the
pointer or press w to zoom out on the pointer.
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.