Thread: [Solved] Sumproduct
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Old 06-14-2012, 10:00 AM
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Colin Legg Colin Legg is offline Windows 7 32bit Office 2010 32bit
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Hi Angie,

There are a few more subtleties but what you've said is a good starting point.

The bottom line is that, in most situations, they're interchangeable and it's just down to the user's preference. But there are some occasions when it's better (or necessary) to use one or the other, including handling column headers (text), text within a sum range and matrices of different sizes.

It's also worth remembering that the "IF" and "IFS" functions (such as COUNTIF, COUNTIFS, SUMIF, SUMIFS, AVERAGEIF, AVERAGEIFS) and database functions (DCOUNT, DSUM etc) are a lot faster to calculate than SUMPRODUCT, so you should use them when possible.
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