HP (Hewlett-Packard) HP 33s ユーザーズマニュアル
User Memory and the Stack
B–3
Clearing Memory
The usual way to clear user memory is to press
{ c
{}. However,
there is also a more powerful clearing procedure that resets additional information
and is useful if the keyboard is not functioning properly.
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):
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
. (You will be pressing three keys simultaneously). When you release
all three keys, the display shows & if the operation is
successful.
successful.
Category
CLEAR ALL
MEMORY CLEAR
(Default)
Angular mode
Unchanged
Degrees
Base mode
Unchanged
Decimal
Contrast setting
Unchanged
Medium
Decimal point
Unchanged
")"
Denominator (/c value)
Unchanged
4095
Display format
Unchanged
FIX 4
Flags Unchanged
Cleared
Fraction–display mode
Unchanged
Off
Random–number seed
Unchanged
Zero
Equation pointer
EQN LIST TOP
EQN LIST TOP
Equation list
Cleared
Cleared
FN = label
Null
Null
Program pointer
PRGM TOP
PRGM TOP
Program memory
Cleared
Cleared
Stack lift
Enabled
Enabled
Stack registers
Cleared to zero
Cleared to zero
Variables
Cleared to zero
Cleared to zero