Disabling Operations; Neutral Operations - HP 35s User Manual

Disabling Operations

The five operations
 () disable stack lift. A number keyed in after one of these disabling
operations writes over the number currently in the X–register. The Y–, Z– and T–
registers remain unchanged.
In addition, when
The INPUT function disables stack lift as it halts a program for prompting (so any
number then entered writes over the X-register), but it enables stack lift when the
program resumes.

Neutral Operations

The following operations do not affect the status of stack lift:
DEG, RAD,
GRAD
PSE
h

(1)**
EQN
Switching binary
windows
Except when used like CLx.
Including all operations performed while the catalog is displayed except

{}
 /
, ,
 
and act like CLx, they also disable stack lift.
FIX, SCI,
ENG, ALL
SHOW

and STOP

(2)**
FDISP
Digit entry

and {}
- 
,
DEC, HEX,
OCT, BIN
RADIX . RADIX , CL
× Ø
and
 
Errors
xiy r a
, which enable stack lift.
User Memory and the Stack
 () and 
CLVARS
 
* and
 
label nnn

and program
entry
:
*
B-5