| 10 REM "Demo for the EVAL command" | |
| 20 REM "" | |
| 30 DIM A$(80) | |
| 100 INPUT "Enter a function (y=x): ",A$ | |
| 110 EVAL 1010,A$ | |
| 200 PRINT "X Y" | |
| 210 FOR X=-4 TO 4.001 STEP 0.5 | |
| 220 GOSUB 1000: PRINT #4, X, Y | |
| 230 NEXT | |
| 300 END | |
| 1000 REM "The function at the end" | |
| 1010 Y=X | |
| 1020 RETURN | |