formula

An expression that has program-like attributes; for example, you can assign values to variables and use a limited control logic. Formulas are best used for working within the object that the user is currently processing. The formula language interface to Notes and IBM® Lotus® Domino™ is through calls to @functions. You can write formulas that return a value to a field, determine selection criteria for a view, create specific fields in a form, determine the documents a replica receives, help users fill out a document, increase performance, and create buttons or hotspots.