Formula rows and columns contain formulas that perform mathematical calculations on grid members. For example, you might want to rank values in a particular column or calculate variance between two rows. A formula consists of grid references, arithmetic operators, and mathematical functions. To define or assign existing formulas to forms, select the appropriate row or column on the Layout tab and then make selections under Segment Properties.
See Adding Formula Rows and Columns. For information about creating formulas and using the mathematical functions, see Form Formula Functions.