Sum of Products form, or

SOP form, is a way of

writing logic equations. In this form, the equation consists of multiple

terms, each of which are

OR'd together. Each term, then, only consists of a number of

variables which are all

AND'd together. This is called "sum of products", because traditionally,

OR is represented by the "+" sign, and

AND is represented by "·". Here is an

example:

_ _ _ _ _ _
F = (A · B · C) + (A · B · C) + (A · B · C)

Each term is within parenthesis here, and has all of it's

variables

AND'd together, and each of the terms are then

OR'd. This particular equation also happens to be in

canonical form.

See also Product of Sums.