What does "--" (2 minus signs) do in a formula
I have been given a spreadsheet that works with the following formula included.
SUMPRODUCT(--(INT((MONTH(ROW(INDIRECT($K4&":"&$J4)))+2)/3)=3),--(YEAR(ROW(INDIRECT($K4&":"&$J4)))=YEAR(Q1Start))))
What does the "--" 2 minus signs after sumproduct do?
Thanks
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