linear combination

18 LETTERS · STARTS WITH L

linear combination is a valid 18-letter word worth 23 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1N1E1A1R1C3O1M3B3I1N1A1T1I1O1N1

1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does linear combination mean?