HP Prime Graphing Calculator - Manual (Page 511)

Programming in HP PPL 505
In this example we’ll select a LOOP command from
the menu.
3. Select Loop and
then select FOR from
the sub-menu.
Notice that a
FOR_FROM_TO_DO
_ template is
inserted. All you
need do is fill in the
missing information.
4. Using the cursor keys
and keyboard, fill in
the missing parts of
the command. In this
case, make the
statement match the
following:
FOR N FROM 1 TO
3 DO
5. Move the cursor to a blank line below the FOR
statement.
6. Tap to open the menu of common
programming commands.
7. Select I/O and then
select MSGBOX from
the sub-menu.