a matrix that has 1 in each position on the main diagonal and 0 in all other positions.
Dictionary.com’s 2015 Word Of The Year: IdentityIn 2015, Dictionary.com saw a number of themes emerge in the words that gained enough traction to be added to the dictionary along with words that trended in user lookups. The most prominent theme across both of these areas was in the expanding and increasingly fluid nature of conversations about gender and sexuality. Additionally, the theme of racial identity led to some of the most …
Origin of identity matrix
First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019