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excel formulas and functions definition. Technically a formula is any expression that begins with an equals sign. Function name a unique identifier which tells Excel which set of formulas you would like to use.
One very useful alternative is the SWITCH function in Excel. Just know that technically a function is a piece of code that executes a predefined calculation while a formula is something you create yourself. For example cell A3 below contains the SUM function which calculates the sum of the range A1A2.
The AND function can be used as the logical test inside the IF function to avoid extra nested IFs and can be combined with the OR function.
The calculated results of formulas and some Excel worksheet functions may differ. The arguments are the inputs required by the function and are enclosed in parentheses. Expressions specified in the Parentheses will be evaluated first. From a communication and comprehension perspective theres not a big difference.