Vector dot-product

Vega186

New Member
Joined
Aug 10, 2002
Messages
8
Hi

Is there a built-in function to do dot products in excel?

ie: multiply two vectors, point for point and return the sum as a single number.

eg:
=DotProduct(A1..A4,B1..B4)
will return a1*b1 + a2*b2 + a3*b3 + a4*b4

Thanks
 

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