identity (EN)
существительное

существительное “identity”

sg. identity, pl. identities or uncountable
  1. идентичность
    After moving to a new country, she struggled to maintain her cultural identity.
  2. тождество
    The identity of these two samples required laboratory testing.
  3. образ (в контексте представления себя другим)
    He assumed a false identity to escape from the police.
  4. тождественное уравнение
    In trigonometry, sin^2(x) + cos^2(x) = 1 is a fundamental identity.
  5. тождественная функция
    The identity function in programming simply returns the value that was passed as an argument.
  6. нейтральный элемент (в контексте математической операции)
    In matrix multiplication, the identity matrix leaves other matrices unchanged when it is used as a multiplier.