Abstract
This chapter discusses loops and subscripted variables. All loops can be programmed by means of the IF statement. The use of the FOR and NEXT statement does, however, provide a more elegant and economic method of programming loops. This statement is designed especially for looping and keeping counters, in contrast to the IF statement that has many other uses (such as testing for input errors) besides controlling loops. The FOR statement gives control of looping with fewer instructions than the use of IF, while the testing of the count is automatic. This statement also makes programs more readable and comprehensible. The initial and terminal values and the increment can be variables, constants, or arithmetic expressions.
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