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Logical Functions

The category of functions known as the logical functions contains a strange hodgepodge of things. Chapter 8 discussed two of them: the If and Case conditional functions. The logical functions covered here include several that are new to FileMaker Pro 7.

The Let function

The Let function enables you to simplify complex calculations by declaring variables to represent sub-expressions. These variables exist only within the scope of the formula and can't be referenced in other places. As an example, this is a formula that was presented in Chapter 8 for extracting the last line of a text field:


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