Meaning of MULTIPLICATIVE IDENTITY in English

MULTIPLICATIVE IDENTITY

noun Date: 1958 an identity element (as 1 in the group of rational numbers without 0) that in a given mathematical system leaves unchanged any element by which it is multiplied

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.