HP 48gII - Manual (Page 175)

Page 5-4
We notice that, at the bottom of the screen, the line See: EXPAND FACTOR
suggests links to other help facility entries, the functions EXPAND and
FACTOR. To move directly to those entries, press the soft menu key
@SEE1! for
EXPAND, and @SEE2! for FACTOR. Pressing @SEE1!, for example, shows the
following information for EXPAND:
The help facility provides not only information on each command, but also
provides an example of its application. This example can be copied onto
your stack by pressing the
@ECHO! soft menu key. For example, for the EXPAND
entry shown above, press the @ECHO! soft menu key to get the following example
copied to the stack (press ` to execute the command):
Thus, we leave for the user to explore the applications of the functions in the
ALG (or ALGB) menu. This is a list of the commands: