45
We could always rewrite the program like this:
10
N=1
20
PRINT “N IS”;N
30
N=N+1
40
IF N > 10 THEN END
50
GOTO 20
We can also count by 2’s. Let’s bring back the previous program and change line 10.
The entire program looks like this:
NEW
10
FOR N=1 TO 10 STEP 2
press
ENTER
20
PRINT “N IS”;N
press
ENTER
30
NEXT N
press
ENTER
The STEP 2 part changes the meaning hidden in the NEXT N statement to be N = N
+ 2 or any other number that gets put in the STEP part.
We can even count backwards.
Try this:
NEW
10
FOR N=10 TO 1 STEP -1
20
PRINT N
30
NEXT N
40
PRINT “BLAST OFF”
RUN