Disabling operations, Neutral operations – HP 35s Scientific Calculator User Manual
Page 305
B-5
Disabling Operations
The five operations
,
/
,
-
,
() and
() 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
and
act like CLx, they also disable stack lift.
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
FIX, SCI,
ENG, ALL
DEC, HEX,
OCT, BIN
CLVARS
PSE
SHOW
RADIX . RADIX , CL
Σ
h
and STOP
×
and
Ø
* and
*
(1)**
(2)**
label nnn
EQN
FDISP
Errors
and program
entry
Switching binary
windows
Digit entry
xiy r
θ
a
:
Except when used like CLx.
Including all operations performed while the catalog is displayed except
{}
and {}
, which enable stack lift.