Calling Commands Unseen On The Keyboard - HP RPN SCIENTIFIC WP 34S Owner's Manual

An erroneous
T
older stuff
Z
Y
X
Input
... but where do we find
More advanced two-number functions may require more effort for error recovery.
Having called
auxiliary register:
T older stuff
Z
Y
X
Input 
Generally, this kind of recovery procedure requires that the inverse of the erroneous
operation is provided.
4. Inadvertent pushes on the stack can be undone by executing DROP once (for
 
,
contents of the top (two) stack level(s) by this mistake, however, so set your stack to
eight levels to minimize the effects.

Calling Commands Unseen on the Keyboard

Your WP 34S features more than 600 different commands. 168 labels are printed on the
keyboard. So how do you learn about the other commands? And when you know their
names, how can you call them?
The answer to the first question is most easy: read! The IOP contains everything.
The answer to the second question is less obvious, but easy as well: the 'hidden
commands' are stored in catalogs. Remember labels underlined point to such collections
of commands. You will find such labels on your WP 34S on the slanted fronts of ten keys.

For example, +
WP 34S Owner's Manual

may be undone the same way:
older stuff
old stuff
older stuff
num old stuff
den
den num

Oops!

? This problem will be solved overleaf.
 
inadvertently can be undone, too, but needs an additional
x
older stuff
old stuff
older stuff
num old stuff
LOG nm
den
dn
 
x
Oops!
 
, , , and alike) or twice (e.g. for
 
points to
older stuff older stuff
old stuff
older stuff
den
num old stuff
den num
 
1 2
older stuff older stuff
old stuff old stuff
LOG nm LOG nm
dn dn
den den
 
00
1 2
, the largest catalog provided.
Edition 3.1
older stuff
old stuff
num
den

3
older stuff older stuff
old stuff
older stuff
den old stuff
LOG nm
dn
  
3 4
 
or ). You will lose the
older stuff
old stuff
num
num den
 
00
5
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