Try the 2* responses in this previous post:

http://tinyurl.com/64py9

*Bob Phillips' link to his page, and
Jason's example and explanation, with a nice touch on its evolution

--
Rgds
Max
xl 97
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GMT+8, 1° 22' N 103° 45' E
xdemechanik <atyahoo<dotcom
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"Arla M" wrote:

I tried looking under Excel's help, but it did not produce any results.
In another question, I was given a SUMPRODUCT formula which had "--" < those
2 characters before my range.

Can someone tell me what the significance of the characters in the formula
are? Or point me to a website that explains?

I feel much more comfortable when I completely understand the formula I am
writing.

Thank you!