SUMPRODUCT

The SUMPRODUCT function calculates the sum of the products of corresponding entries in 2 equally sized arrays or ranges.

Sample Usage

SUMPRODUCT(A2:C5,D2:F5)

SUMPRODUCT({1,2,3,4},{5,6,7,8})

Syntax

SUMPRODUCT(array1, [array2, ...])

• array1 - The first array or range whose entries will be multiplied with corresponding entries in the second such array or range.
• array2, ... - [ OPTIONAL - {1,1,1,...} with same length as array1 by default ] - The second array or range whose entries will be multiplied with corresponding entries in the first such array or range.

Notes

• Matrix multiplication, MMULT, can also be accomplished using a combination of TRANSPOSE and SUMPRODUCT functions.

See Also

TRANSPOSE: Transposes the rows and columns of an array or range of cells.

MMULT: Calculates the matrix product of two matrices specified as arrays or ranges.

Examples