Calculator programs
Everything you need to key in any program on this site: the editor, where each command is, and how to check your work.
Nine bytes that square and cube a number: every key you need for the long programs, once.
Step 1 of 15
MODE 6 opens PRGM: 1 EDIT, 2 RUN, 3 DEL.
Key 0 of 29 · Press Play to watch, or Next key to go one press at a time.
Keying in a long program takes 5 to 15 minutes. Do it at home, once: programs stay when the calculator is switched off.
Each program page gives its bytes. P1 to P4 share 680 bytes, so check the free memory on the EDIT screen first. A pack on this site always fits in an empty calculator.
→ is SHIFT RCL (STO). Straight after it, press the variable key without ALPHA.
Everywhere else, a variable is ALPHA plus its key. EXE types the colon.
The other program commands are on the nine pages of P-CMD (SHIFT 3): ▶ or ◀ to the page, then the command's number. The table below has the path to each.
ALPHA and the key types the variable; straight after →, the key alone.
SHIFT 3 opens page 1. ▶ goes forward and ◀ back; the pages wrap.
| Page | Command | Keys |
|---|---|---|
| 1 | ? | SHIFTP-CMD3 |
◀ and ▶ move the cursor; DEL deletes the command or letter just left of it; whatever you type is inserted at the cursor.
To change a program later, MODE 6 1 and its area open it again, with the cursor at the start.
When you finish, the byte count must match the page. If it doesn't, compare your listing with the page's key table, statement by statement.
In COMP (MODE 1), Prog and the area number run it. At a prompt such as A?, type the value and press EXE; EXE alone keeps the value shown.
Disp on the screen means there is another result: EXE shows it. AC stops a program at any time.
Programs overwrite the memories A, B, C, D, X, Y and M. Don't keep anything there that you need.
MODE 6 3, then the area: the program is deleted at once, with no question asked, and its bytes are free again.
| → | SHIFTP-CMD32 |
| : | EXE |
| ◢ | SHIFTP-CMD34 |
| 2 | ⇒ | SHIFTP-CMD3▶1 |
| = | SHIFTP-CMD3▶2 |
| ≠ | SHIFTP-CMD3▶3 |
| 3 | > | SHIFTP-CMD3▶▶1 |
| < | SHIFTP-CMD3▶▶2 |
| ≧ | SHIFTP-CMD3▶▶3 |
| ≦ | SHIFTP-CMD3▶▶4 |
| 4 | Goto | SHIFTP-CMD3▶▶▶1 |
| Lbl | SHIFTP-CMD3▶▶▶2 |
| 5 | While | SHIFTP-CMD3▶▶▶▶1 |
| WhileEnd | SHIFTP-CMD3▶▶▶▶2 |
| 6 | Next | SHIFTP-CMD3◀◀◀◀1 |
| Break | SHIFTP-CMD3◀◀◀◀2 |
| 7 | For | SHIFTP-CMD3◀◀◀1 |
| To | SHIFTP-CMD3◀◀◀2 |
| Step | SHIFTP-CMD3◀◀◀3 |
| 8 | Else | SHIFTP-CMD3◀◀1 |
| IfEnd | SHIFTP-CMD3◀◀2 |
| 9 | If | SHIFTP-CMD3◀1 |
| Then | SHIFTP-CMD3◀2 |