Excel's Formula - sisman

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Part V: Miscellaneous Formula Techniques
This formula essentially reverses the integers generated in column B.
The range D1:D12 contains the following array formula:
{=MID(A1,C1:C12,1)}
This formula uses the MID function to extract the individual characters in cell A1. The MID function
uses the array in C1:C12 as its second argument. The result is an array of the name’s characters in
reverse order.
The formula in cell E1 is as follows:
=MATCH(“ “,D1:D12,0)
This formula, which is not an array formula, uses the MATCH function to return the position of the
first space character in the range D1:D12. In the example shown in Figure 20-4, the formula
returns 6, which means that the first space character is six characters from the end of the text in
cell A1.
The formula in cell F1 is
=LEN(A1)+1–E1
This formula returns the character position of the last space in the string.
You may wonder how all of these formulas can possibly be combined into a single formula. Keep
reading for the answer.
Creating the megaformula
At this point, cell F1 contains the result that you’re looking for — the number that indicates the
position of the last space character. The challenge is consolidating all of those intermediate formulas
into a single formula. The goal is to produce a formula that contains only references to cell
A1. These steps will get you to that goal:
1. The formula in cell F1 contains a reference to cell E1. Replace that reference with the text
of the formula in cell E1.
As a result, the formula in cell F1 becomes
=LEN(A1)+1–MATCH(“ “,D1:D12,0)
2. The formula contains a reference to D1:D12. This range contains a single array formula.
Replacing the reference to D1:D12 with the array formula results in the following array formula
in cell F1:
{=LEN(A1)+1–MATCH(“ “,MID(A1,C1:C12,1),0)}