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Clearing one or more programs, The checksum – HP 32SII User Manual

Page 184

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12–22 Simple Programming

File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm

Clearing One or More Programs

To clear a specific program from memory

1. Press

z

X

{

} and display (using

z

˜

and

z

—

)

the label of the program.

2. Press

z

b

.

3. Press

†

to cancel the catalog or

a

to back out.

To clear all programs from memory:

1. Press

z

d

to display program lines (PRGM annunciator on).

2. Press

z

b

{

} to clear program memory.

3. The message

@

&

prompts you for confirmation. Press {

&

}.

4. Press

z

d

to cancel program entry.

Clearing all of memory (

z

b

{

}) also clears all programs.

The Checksum

The

checksum is a unique hexadecimal value given to each program label

and its associated lines (until the next label). This number is useful for
comparison with a known checksum for an existing program that you have
keyed into program memory. If the known checksum and the one shown by
your calculator are the same, then you have correctly entered all th

e lines

of

the program, To see your checksum:

1. Press

z

X

{

} for the catalog of program labels.

2. Display the appropriate label by using the arrow keys, if necessary.
3. Press and hold

{



to display

/

value length.

For example, to see the checksum for the current program (the "cylinder"
program):

Keys: Display: Description:

z

X

{

}

)

Displays label C, which
takes 61.5 bytes.

{



/

)

Checksum and length.