HP 50g Graphing Calculator - Manual (Page 36)

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The TOOL menu
The soft menu keys for the menu currently displayed, known as the TOOL menu,
are associated with operations related to manipulation of variables (see pages
for more information on variables):
@EDIT
A EDIT the contents of a variable (see Chapter 2 and Appendix
L for more information on editing)
@VIEW B VIEW the contents of a variable
@@ RCL @@ C ReCaLl the contents of a variable
@@STO@ D STOre the contents of a variable
! PURGE E PURGE a variable
CLEAR F CLEAR the display or stack
The calculator has only six soft menu keys, and can only display 6 labels at any
point in time. However, a menu can have more than six entries. Each group of
6 entries is called a Menu page. The TOOL menu has eight entries arranged
in two pages. The next page, containing the next two entries of the menu are
available by pressing the
L (NeXT menu) key. This key is the third key from
the left in the third row of keys in the keyboard.
In this case, only the first two soft menu keys have commands associated with
them. These commands are:
@CASCM
A CASCMD: CAS CoMmanD, used to launch a command from
the CAS by selecting from a list
@HELP B HELP facility describing the commands available
Pressing the L key will show the original TOOL menu. Another way to
recover the TOOL menu is to press the I key (third key from the left in the
second row of keys from the top of the keyboard).
Setting time and date
The calculator has an internal real time clock. This clock can be continuously
displayed on the screen and be used for alarms as well as running scheduled
tasks. This section will show not only how to set time and date, but also the
basics of using CHOOSE boxes and entering data in a dialog box. Dialog
boxes on your calculator are similar to a computer dialog box.
To set time and date we use the TIME choose box available as an alternative
function for the
9 key. By combining the right-shift button, ‚, with the