Excel 2010 Bible

(National Geographic (Little) Kids) #1

Part II: Working with Formulas and Functions


360


Array constant elements ..........................................................................................


An array constant can contain numbers, text, logical values (TRUE or FALSE), and even error val-
ues, such as #N/A. Numbers can be in integer, decimal, or scientific format. You must enclose text
in double quotation marks. You can use different types of values in the same array constant, as in
this example:

{1,2,3,TRUE,FALSE,TRUE,”Moe”,”Larry”,”Curly”}

An array constant can’t contain formulas, functions, or other arrays. Numeric values can’t contain
dollar signs, commas, parentheses, or percent signs. For example, the following is an invalid array
constant:

{SQRT(32),$56.32,12.5%}

Understanding the Dimensions of an Array .......................................................................


As stated previously, an array can be one dimensional or two dimensional. A one-dimensional
array’s orientation can be horizontal (corresponding to a single row) or vertical (corresponding to a
single column).

One-dimensional horizontal arrays ..........................................................................


The elements in a one-dimensional horizontal array are separated by commas, and the array can be
displayed in a row of cells. The following example is a one-dimensional horizontal array constant:

{1,2,3,4,5}

Displaying this array in a range requires five consecutive cells in a row. To enter this array into a
range, select a range of cells that consists of one row and five columns. Then enter ={1,2,3,4,5}
and press Ctrl+Shift+Enter.

Note
If you enter this array into a horizontal range that consists of more than five cells, the extra cells will contain
#N/A (which denotes unavailable values). If you enter this array into a vertical range of cells, only the first
item ( 1 ) will appear in each cell. n


The following example is another horizontal array; it has seven elements and is made up of text
strings:

{“Sun”,”Mon”,”Tue”,”Wed”,”Thu”,”Fri”,”Sat”}
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