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22_044039 ch17.qxp 11/21/06 11:08 AM Page 324
Part II
Working with Formulas and Functions
FIGURE 17.9
After you’ve pressed F9, the Formula bar displays the array constant.
Performing operations on an array
So far, most of the examples in this chapter simply entered arrays into ranges. The following array formula
creates a rectangular array and multiplies each array element by 2:
{={1,2,3,4;5,6,7,8;9,10,11,12}*2}
Figure 17.10 shows the result when you enter this formula into a range:
FIGURE 17.10
Performing a mathematical operation on an array.

The following array formula multiplies each array element by itself. Figure 17.11 shows the result when you
enter this formula into a range:

{={1,2,3,4;5,6,7,8;9,10,11,12}*{1,2,3,4;5,6,7,8;9,10,11,12}}
The following array formula is a simpler way of obtaining the same result:
{={1,2,3,4;5,6,7,8;9,10,11,12}^2}
If the array is stored in a range (such as A1:C4), the array formula returns the square of each value in the
range, as follows:
{=A1:C4^2}

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