FOR

Syntax

FOR (Index, Start, Finish, Loop Body)

Description

The FOR function loops through a series of values.

Parameters

Parameter	Description
Index	The name of the variable that holds the index number.
Start	The index value at which to start the loop.
Finish	The index value at which to finish the loop.
Loop Body	The action to take at the current index.

Example

The following formula raises a base to an integral exponent without using the ^ operator:

IF(EXPONENT <> TRUNC(EXPONENT), RETURN(0.0));
	SET(&Result, 1);
FOR(&Index, 1, ABS(EXPONENT),
	SET(&Result, &Result * BASE));
IF(EXPONENT >= 0, &Result, 1 / &Result)

In this formula, the FOR function sets the specified variable to each value at the beginning of the loop, counting up if Finish is greater than Start, and counting down if Start is greater than Finish.