A formula can refer to constant values or cell references. If a value in any of the referenced cells changes, the result of the formula changes. If you use constant values in the formula instead of references to the cells, the result changes only if you modify the formula (or values in the formula).
If a new row is added right before or after a cell range in a formula then the range does not include the new row.
The following topics describe the different notation styles and reference types: