Clear functions and backspace key – HP 35s Scientific Calculator User Manual

Page 189

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Simple Programming

13-7

5. End the program with a return instruction, which sets the program pointer back

to   after the program runs. Press



.

6. Press

(or



) to cancel program entry.

Numbers in program lines are stored precisely as you entered them, and they're
displayed using ALL or SCI format. (If a long number is shortened in the display,
press



to view all digits.)

To enter an equation in a program line:

1. Press

to activate Equation–entry mode. The EQN annunciator turns on.

2. Enter the equation as you would in the equation list. See chapter 6 for details.

Use

to correct errors as you type.

3. Press

to terminate the equation and display its left end. (The equation

does not become part of the equation list.)

After you've entered an equation, you can press

to see its checksum

and length. Hold the

key to keep the values in the display.

For a long equation, the

and

annunciators show that scrolling is active for

this program line. You can use

Ö

and

Õ

to scroll the display.

Clear functions and backspace key

Note these special conditions during program entry:

always cancels program entry. It never clears a number to zero.

In program line view status,

deletes the current program line and

Ц

/

Х

begins the edit status. In program line edit status,

deletes a

character before the cursor.

To program a function to clear the X–register, use

().

When you insert or erase a line in a program, GTO and XEQ statements are
automatically updated if needed.

For example:

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