HP 39gs User Manual page 250

DISPTIME
EDITMAT
FREEZE
18-28
Example
DISPXY
–3.5;1.5;2;"HELLO
WORLD":
Displays the current date and time.
DISPTIME
To set the date and time, simply store the correct settings
in the date and time variables. Use the following formats:
M.DDYYYY for the date and H.MMSS for the time.
Examples
5.152000 DATE(sets the date to May 15, 2000).
10.1500 TIME (sets the time to 10:15 am).
Matrix Editor. Opens the Matrix editor for the specified
matrix. Returns to the program when user presses
EDITMAT matrixname:
The EDITMAT command can also be used to create
matrices.
1. Press
CMDS
M 1, and then press
2. Press
The Matrix catalog opens with M1 available for
editing.
EDITMAT matrixname is an alternative to opening
the matrix editor with matrixname.
This command prevents the display from being updated
after the program runs. This allows you to view the
graphics created by the program. Cancel FREEZE by
pressing any key.
FREEZE:
.
Programming