unit matrix

NOUN
11 LETTERS · STARTS WITH U

unit matrix is a valid 11-letter word worth 19 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
U1N1I1T1M3A1T1R1I1X8
1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 8 =19 PTS
DOUBLE WORD → 38TRIPLE WORD → 57
MEANING

What does unit matrix mean?

NOUN · 1 SENSE
1

A scalar matrix in which all of the diagonal elements are unity.