identity element

1. 1.

   an operator that leaves unchanged the element on which it operates

   “the identity under numerical multiplication is 1”

   Synonymsidentityidentity operator

   Broaderoperator

Questions about identity element

What does identity element mean?

identity element means "an operator that leaves unchanged the element on which it operates".

What is another word for identity element?

Close synonyms include identity, identity operator. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.