identity
/aɪˈdɛntɪˌti/
an element that leaves other elements unchanged under an operation
identity in a sentence
“Zero is the additive identity; one is the multiplicative identity.”
Origin of identity
Latin identitas sameness, from idem same
Related Words
variable
a symbol representing an unknown or changeable quantity
coefficient
a numerical factor multiplying a variable
polynomial
an expression of variables and coefficients using only addition, subtraction, and multiplication
quadratic
involving the second power of a variable
factorization
expressing a number or expression as a product of its factors
matrix
a rectangular array of numbers arranged in rows and columns