HP RPN SCIENTIFIC WP 34S Owner's Manual page 146

 

 
or


 
 
nn

Note no other keys will work in STOPW – so e.g. for adding or subtracting split times
you have to leave this application.
Note STOPW is not programmable.
WP 34S Owner's Manual
stores the present timer value in the current register at execution time in
hhh.mmssd
format
increments the CRA and displays it as shown above.
hides or displays the CRA. Startup default is 'hide'.
increments or decrements the CRA, respectively.

combines
last explicit press of
Note this total time is volatile, however – it will disappear without a trace
 
when or is pressed.
adds the present timer value to the statistics registers like
This allows for computing its arithmetic mean and standard deviation after
leaving STOPW.
 
combines and
r
recalls nn without changing the status of the timer. The value recalled may
be used e.g. as start time for further incrementing.
leaves the application. Unless already stopped, however, the timer
continues incrementing in the background (indicated by the small '='
annunciator flashing) until
a) stopped explicitly by
b) your WP 34S is turned off.
ATTENTION: Since your WP 34S shuts down automatically after
some five minutes of non-usage, press some prefix keys twice in
suitable intervals if you need to measure longer times.
While the stopwatch display is limited to 99h59'59" 9, internal counting
will continue with the display showing the time modulo 100.
without changing the timer status or value. It then

and in one keystroke, but the total time since the
 
or is shown and updated in the top row like:
or
in one keystroke.

within STOPW or

Edition 3.1
.

would do.
Page 146 of 211