Cofactor may also refer to: *

Cofactor (biochemistry) A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's role as a catalyst (a catalyst is a substance that increases the rate of a chemical reaction). Cofactors can be considered "helper molecules" that ass ...

, a substance that needs to be present in addition to an enzyme for a certain reaction to be catalysed * A domain parameter in elliptic curve cryptography, defined as the ratio between the order of a group and that of the subgroup * Cofactor (linear algebra), the signed minor of a matrix * Minor (linear algebra), an alternative name for the determinant of a smaller matrix than that which it describes *

Shannon cofactor Boole's expansion theorem, often referred to as the Shannon expansion or decomposition, is the identity: F = x \cdot F_x + x' \cdot F_, where F is any Boolean function, x is a variable, x' is the complement of x, and F_xand F_ are F with the argume ...

, a term in Boole's (or Shannon's) expansion of a Boolean function

See also