HP RPN SCIENTIFIC WP 34S Owner's Manual page 70

 Take VIEW, VIEWα, or VWα+ for plain display updates. X is a valid parameter for
VIEW and VWα+. Note that frequent updates will slow down program execution,
since the anti-flicker logic waits for a complete display refresh cycle before allowing
the next update.
 Use one of the following four code segments for displaying messages or other
information for a defined minimum time interval, specified by PSE (see the
details):
PSE
for plain numeric output
 Ask ('prompt') for numeric input employing one of these four:
STOP
Whatever you key in will be in X when you continue the program by pressing
If you want it elsewhere, take care of it.
 Prompt for alphanumeric input by the following steps:
αON
PROMPT
αOFF
Whatever you key in will be appended to

you press
See the IOP for more information about these commands and their parameters.
If you press – instead of or after keying in numeric data – one of the hotkeys
input, the program will call the next routine beginning with a label carrying this name.
The following
001 LBL 'MYP'
002 CLα
003 α 'Hel'
004 α 'lo!'
005 LBL 00
006 PROMPT
007 GTO 00
008 LBL A
009 ENTRY?
010 GTO 03
011 XEQ 01
012 LBL 03
013 STO 01
014 RTN
WP 34S Owner's Manual
VIEW
PSE
VIEWα
STOP
sets alpha mode and prepares for showing the final part of
displays this part and waits for user input, terminated by
returns to the numeric mode previously set.
.
example shows how a typical structure of such a program might look:
Sets up a message ...
... and stops waiting for user input.

does nothing, it simply returns to the prompt.
Called if user input after step 006 was terminated by
Any new numeric data entered by the user?
Then go to step 012 where local label 11 lives.
Else call subroutine 01 for computing a new number instead.
Store the new number (input or computed).
Return to prompting via step 007.
VIEWα VWα+
PSE PSE
for complex alphanumeric messages
VWα+ PROMPT
STOP
alpha here. The program will continue when
Edition 3.1
combines VWα+ X and
STOP in one command
alpha

.

to

.
Page 70 of 211
IOP for

.
.

in