Clearing memory – HP 35s Scientific Calculator User Manual
Page 303
B-3
Clearing Memory
The usual way to clear user memory is to press
(). However,
there is also a more powerful clearing procedure that resets additional information
and is useful if the keyboard is not functioning properly.
If the calculator fails to respond to keystrokes, and you are unable to restore
operation by resetting it or changing the batteries, try the following MEMORY
CLEAR procedure. These keystrokes clear all of memory, reset the calculator, and
restore all format and modes to their original, default settings (shown below):
1. Press and hold down the
key.
2. Press and hold down
¥
.
3. Press
6
. (You will be pressing three keys simultaneously). When you release
all three keys, the display shows if the operation is
successful.