linear transformation

21 LETTERS · STARTS WITH L

linear transformation is a valid 21-letter word worth 25 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1N1E1A1R1T1R1A1N1S1F4O1R1M3A1T1I1O1N1

1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does linear transformation mean?