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Office 2007 Bible by Lisa A. Bucki, Gavin Powell, Michael R. Irwin, Peter G. Aitken, Michael R. Groh, Cary N. Prague, Faithe Wempen, Herb Tyson, John Walkenbach

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Summing Formulas

The examples in this section demonstrate how to perform common summing tasks by using formulas. The formulas range from very simple to relatively complex array formulas that compute sums by using multiple criteria.

Summing all cells in a range

It doesn’t get much simpler than this. The following formula returns the sum of all values in a range named Data:

=SUM(Data)

The SUM function can take up to 255 arguments. The following formula, for example, returns the sum of the values in five noncontiguous ranges:

=SUM(A1:A9,C1:C9,E1:E9,G1:G9,I1:I9)

You can use complete rows or columns as an argument for the SUM function. The formula that follows, for example, returns the sum of all values in column A. If this formula appears in a cell in column A, it generates a circular reference error.

=SUM(A:A)

The following formula returns the sum of all values on Sheet1 by using a range reference that consists of all rows. To avoid a circular reference error, this formula must appear on a sheet other than Sheet1.

=SUM(Sheet1!1:1048576)

The SUM function is very versatile. The arguments can be numerical values, cells, ranges, text representations of numbers (which are interpreted as values), logical values, and even embedded functions. For example, consider the following formula:

=SUM(B1,5,"6",,SQRT(4),A1:A5,TRUE)

This odd formula, which is perfectly valid, contains all of the following types of arguments, listed here in the order of their presentation:

  • A single cell reference

  • A literal ...

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