Lesson 3: Entering Characters; The (A) Keyboard - HP 48G Series Quick Start Manual

Lesson 3: Entering Characters
The (a) Keyboard
The (@) key is a special shift key that converts the
keyboard into a kind of typewriter. Whenever you see the
d annunciator at the top of the display, the next key you
press will type its alpha character instead of performing
its operation.
Only the upper-case English letters are printed on the keyboard (in
white at the lower-right corner of the respective key).
You can turn on the d annunciator (that is, enter alpha mode) several
ways, depending on what is most convenient for you:
(@) Enters alpha mode for the next keystroke only.
@)®& Enters lowercase (@)) alpha mode for the next
keystroke only.
@E Enters extended ((@)) alpha mode for the next
keystroke only.
(@)(@) Locks alpha mode on until you press (a), (ENTER), or
(CANCEL).
(a) (hold) Enters alpha mode for as long as you hold the (a) key
down. You can press other keys meanwhile.
@)@)@D(@) Locks lower-case alpha mode on until you press (2),
Some examples of the alpha keyboard are shown below:
@A@B@@C — FEC
(@) (hold) A B C (release) — FEC
@@ ABC) —> AEC
@A@@&B (@)C — Abi
(@) (hold) A @@B C (release) ==» AL
@@A@B C[) — Abi
@@@ ABC) —_ mh
Introducing the HP 48 2-7