commutative
Mathematics term describing an operation where the order of operands does not affect the result, e.g., a+b = b+a.
Addition and multiplication are commutative operations.
Matrix multiplication is generally not commutative.
commutativity
commutative ring
Abelian group; commutative group
noncommutative
Compound of 可 (possible) and 換 (exchange), literally 'exchangeable'. Used as a translation of the mathematical term 'commutative'.