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Using functions in formulas
When you insert a function into a formula, the abbreviation of that function appears in the formula text area. Parentheses after the abbreviation mean that you need to provide one or more values for calculating the function. A separator (shown as a comma in the Help Topics) appears between multiple values. Example
Depending on the function, these values can be numbers, constants, variables, formulas, or other functions. For details, click on a function in the list below.