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Navigation
The HP Prime offers two modes of navigation: by touch and by keypress. In many cases, you can tap on an icon, field, menu, or
object to select (or deselect) it. For example, you can open the Function app by tapping once on its icon in the Application
Library. However, to open the Application Library, you will need to press a key:
I. Selections can often be made either by
tapping or by using the keys. For instance, as well as tapping an icon in the Application Library, you can press the cursor keys
until the app you want to open is highlighted, and then press
E. Sometimes both a touch and a key–touch combination is
available. For example, you can deselect a toggle option either by tapping on it, or by using the cursor keys to move to the field
and then tapping a touch button along the bottom of the screen (in this case
). Note that and E work
identically, as do and J.
You must use your finger to select an item by touch. Using a stylus or something similar will not work.
Touch gestures: In addition to selection by tapping, there are other touch-related operations available to you. How these
gestures are interpreted varies from app to app, and from view to view within an app. For example, swiping the screen (by
placing a finger on the screen and dragging it in the desired direction: right or left; up or down) will quickly move from page to
page in a multi-page view like Plot Setup. But in the Plot view of most apps, swiping will scroll the view. Likewise, pinching (by
placing a thumb and finger on the screen and moving them together or apart) will be interpreted differently by different apps. For
example, in the Spreadsheet app, a horizontal pinch can be used to change the width of a column. In the Trig Explorer app, a
vertical pinch can be used to change the amplitude of the sinusoid.
Home Settings
Many calculator settings are user-configurable, such as angle measure, number format, entry
format, decimal mark etc. To view or change a setting, press SH (Settings). The Home
Settings
window appears. This window is an input form, that is, a window that provides one or
more fields for you to enter data or select an option. You can use the cursor keys to move to a field
you want to change, make your change, and press
E.