| 10 REM 'Function to calculate the greatest common divisor (GCD)' | |
| 20 REM "Demo for a multipline function" | |
| 100 DEF FNG() | |
| 110 WHILE B <> 0 | |
| 120 T = B | |
| 130 B = A % B | |
| 140 A = T | |
| 150 WEND | |
| 160 RETURN A | |
| 170 FEND | |
| 200 WHILE -1 | |
| 210 READ A,B | |
| 220 IF @S<>0 THEN BREAK | |
| 230 PRINT "The greatest common denominator of",A,"and",B,"is: ";FNG() | |
| 240 WEND | |
| 250 END | |
| 300 DATA 18,27,54,63,128,371,34,85 | |