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HCL Domino Designer Basic User Guide and Reference
This guide provides information on using HCL Domino Designer and programming language reference information.
Formula Language
This section documents the formula language.
Formula Language Rules
Formula language provides syntax and @functions for evaluating constants and variables, and for performing simple logic. Variables can be fields in Notes® documents or temporary variables (also called temporary fields) used only for the immediate formula.
Using @functions
Notes® @functions are built-in formulas that perform specialized calculations and return a value. The following sections describe:
Return values and @functions
An @function calculates a return value and replaces itself with the value. The use of the @function must be appropriate for its data type. For example, @Power can compute the value of a numeric field:

Return values and @functions

An @function calculates a return value and replaces itself with the value. The use of the @function must be appropriate for its data type. For example, @Power can compute the value of a numeric field:

@Power(2; Exp)

But must be wrapped in @Text to compute the value of a text field:

@Text(@Power(2; Exp))