7.5 FOR Statement

The for statement repeats a statement a specific number of times.

FOR var = expr1, expr2 [, expr3] [ DO ]
   statement

Variable var is the loop variable. It is assigned the value of expr1. Then the statement statement is executed. Then the loop variable is incremented by expr3, if specified, or by one otherwise. If the value of the loop variable is now greater than that of expr2, then the loop is finished and control passes to the next statement. Otherwise, the loop is repeated.

For example,

LUX>FOR i = 1,5 T,i*i
      1
      4
      9
     16
     25
LUX>