Question posted 2014 · +11 upvotes
I am trying to find a proper way to calculate the scalar product of two ranges. For instance, the product of A1:A3 and B1:B3 would be A1*B1 + A2*B2 + A3*B3. Is there a good way to do this? Hardcoding this calculation is quite a tedious thing to do with large ranges.
Accepted answer +17 upvotes
Use this one
=SUMPRODUCT(A1:A3,B1:B3)
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