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This chapter is from the book

This chapter is from the book

Calculating Multiple Results

An array formula can perform multiple calculations and then return either a single or multiple result. For example, when you want to count the number of distinct entries in a range, you can use an array formula, such as {=SUM(1/COUNTIF(range,range))}. You can also use an array formula to perform a two column lookup using the LOOKUP function. An array formula works on two or more sets of values, known as array arguments. Each argument must have the same number of rows and columns. You can create array formulas in the same way that you create other formulas, except you press Ctrl+Shift+Enter to enter the formula. When you enter an array formula, Excel inserts the formula between { } (brackets).

Create an Array Formula

  • lightyellow_01.jpg Click the cell where you want to enter the array formula.
  • lightyellow_02.jpg Click the Formulas tab.
  • lightyellow_03.jpg Type = (an equal sign).
  • lightyellow_04.jpg Use any of the following methods to enter the formula you want.
    • Type the function.
    • Type and use Formula AutoComplete.
    • Use the Function Wizard.
    • Use button in the Function Library.
  • lightyellow_05.jpg Press Ctrl+Shift+Enter.

    { } (brackets) appear around the function to indicate it’s an array formula.

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