13-6 Simple Programming
For output, you can display a variable with the VIEW instruction, you can display a
message derived from an equation, you can display process in line 1, you can
display the program result in line 2, or you can leave unmarked values on the stack.
These are covered later in this chapter under "Entering and Displaying Data."
Entering a Program
Pressing toggles the calculator into and out of Program–entry mode —
turns the PRGM annunciator on and off. Keystrokes in Program–entry mode are
stored as program lines in memory. Each instruction (command) or expression
occupies one program line. In ALG mode, you can enter an expression directly in a
program
To enter a program into memory:
1. Press
to activate Program–entry mode.
2. Press to display . This sets the program pointer to a
known spot, before any other programs. As you enter program lines, they are
inserted before all other program lines.
If you don't need any other programs that might be in memory, clear program
memory by pressing
(). To confirm that you want all
programs deleted, press
Ö () after the message .
3. Give the program a label — a single letter, A through Z. Press
letter.
Choose a letter that will remind you of the program, such as "A" for "area."
If the message is displayed, use a different letter. You can
clear the existing program instead — press (), use × or
Ø to find the label, and press and .
4. To record calculator operations as program instructions, press the same keys
you would to do an operation manually. Remember that many functions don't
appear on the keyboard but must be accessed using menus.
To enter an equation in a program line, see the instructions below.
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