Documentation/How Tos/Calc: SUMPRODUCT function

SUMPRODUCT

Returns the sum of the products of corresponding array elements.

Syntax:

SUMPRODUCT(array1; array2; ... array30)

array1 to array30 are up to 30 arrays or ranges whose corresponding elements are to be multiplied.

SUMPRODUCT evaluates in array mode, but does not need to be entered as an array formula.

You can use SUMPRODUCT to calculate the scalar product of two vectors.

SUMPRODUCT can also be used to sum cells where a specified condition is true - see Conditional Counting and Summation and the example below.

Example:

SUMPRODUCT(A1:B2; C1:D2)

returns A1*C1 + B1*D1 + A2*C2 + B2*D2:

SUMPRODUCT(A1:A6=”red”; B1:B6=”big”; C1:C6)

returns the sum of cells in C1:C6 whose corresponding entries in the A column are red and in the B column are big.

See also:

SUM, SUMIF, SUMSQ, SUMX2MY2, SUMX2PY2, SUMXMY2

Conditional Counting and Summation

How To Use Arrays in Calc

Array functions