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Repeats a block of statements a specified number of times. #### Syntax for variable = expression1 to expression2 step expression3 { statement }... next #### Notes
variable | the loop counter.
expression1 | the initial value of the loop counter.
expression2 | the final value of the loop counter.
expression3 | the increment to loop counter each time through the loop.
statement | any statements to process.
Repeats the block of statements 0 or more times. #### Example
    for i = 10 to 1 step -1
        println( i )
    next
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