nonsingular matrix

NOUN
18 LETTERS · STARTS WITH N

nonsingular matrix is a valid 18-letter word worth 27 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
N1O1N1S1I1N1G2U1L1A1R1M3A1T1R1I1X8
1 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 8 =27 PTS
DOUBLE WORD → 54TRIPLE WORD → 81
MEANING

What does nonsingular matrix mean?

NOUN · 1 SENSE
1

A square matrix whose determinant is not zero.