Excel's Formula - sisman

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Part II: Using Functions in Your Formulas
Figure 9-14: The Formula AutoComplete feature is useful when creating a formula that refers to data in a
table.
Using this structured table syntax is optional — you can use actual range references if you like.
For example, the following formula returns the same result as the preceding one:
=SUMIF(B3:B8,”Jan”,D3:D8)
To refer to a cell in the Total row of a table, use a formula like this:
=Table2[[#Totals],[Sales]]
If the Total row in Table2 is not displayed, the preceding formula returns a #REF error.
This formula returns the value in the Total row of the Sales column in Table2.
To count the total number of rows in Table2, use the following formula:
=ROWS(Table2[#All])
The preceding formula counts all rows, including the Header row and Total row. To count only
the data rows, use a formula like this:
=ROWS(Table2[#Data])
A formula that’s in the same row as a table can use a #This Row reference to refer to table data
that’s in the same row. For example, assume the following formula is in row 3, in a column outside
Table2. The formula counts the number of entries in row 3 of Table2:
=COUNTA(Table2[@])