Array Formula in MS Excel
An array formula in MS Excel is a formula that performs a calculation on a range of values, rather than a single value. Array formulas can return a result in a single cell or in multiple cells, depending on the size of the range used in the calculation.
Array formulas are entered into a cell by pressing the Ctrl + Shift + Enter keys, instead of just the Enter key. This tells Excel that the formula is an array formula and it should perform the calculation across the entire range of values.
The syntax of an array formula can vary depending on the type of calculation being performed, but the basic format is similar to a regular formula. For example, the following array formula would sum the values in the range A1:A10:
{=SUM(A1:A10)}
Once the formula is entered into the cell, you can reference it just like a regular formula. However, because array formulas can return multiple values, you need to select the range of cells that will receive the results before entering the formula.
Array formulas are very powerful and can be used to perform complex calculations, but they can also be difficult to understand and debug. It is important to carefully consider the size of the range used in the calculation and the type of result you want to return before using an array formula.
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