Laser 128 - For

BASIC COMMANDS AND STATEMENTS
The value of i can also be
negative , in which case it is as
though m and n are exchanged
for their positive roles.
In other words, n is greater than
m, and the counter is reduced
each time through the loop until
n is less than m.
FOR . . . NEXT loops c~n be
written inside each other, or
nested. In these cases, the
variable name s must be
different, and each FOR must
be matched with its
corresponding NEXT.
Alternatively, one NEXT can
serve a number of FORs, when
it is given as NEXT variab le/ ,
variable2, variable3 etc .
Examples: ] 10 FOR N = 2 TO 100 STEP 2
] 20 PRINT N/ 2
] 30 NEXT
This would pdn t out the
number s from 1 to 50.
] 100 FOR N = I 00 TO 2 STEP -
2
] I IO PRINT N/ 2
] 129 NE XT
This would also print out the
numbers between I and 50, but
in reverse order to t he first
examp le.
Il-41