characteristic root of a square matrix

NOUN
38 LETTERS · STARTS WITH C

characteristic root of a square matrix is a valid 38-letter word worth 63 points in Scrabble and 67 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3H4A1R1A1C3T1E1R1I1S1T1I1C3R1O1O1T1O1F4A1S1Q10U1A1R1E1M3A1T1R1I1X8
3 + 4 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 0 + 1 + 1 + 1 + 1 + 0 + 1 + 4 + 0 + 1 + 0 + 1 + 10 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 8 =63 PTS
DOUBLE WORD → 126TRIPLE WORD → 189
MEANING

What does characteristic root of a square matrix mean?

NOUN · 1 SENSE
1

(mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant.

SYNONYMS
EIGENVALUEEIGENVALUE OF A MATRIXEIGENVALUE OF A SQUARE MATRIX
BROADER
VALUE