Hi,

I was wondering what -- does. I'm assuming -- does not mean +.
Specifically, I saw one example from Contextures with:

=SUMPRODUCT(--(ColourList=B15),(UnitsList),--(DateList=$C$2),--(DateList<=$E$2))

Although I'm specifically referring to sumproduct, if it has different
meanings/usage elsewhere, I'd be interested in knowing about that too.
If you know of a website that explains it, that would work fine too.
(-- isn't an easy thing to search for)

Thanks,
Scott


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Maistrye
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