affine group

12 LETTERS · STARTS WITH A

affine group is a valid 12-letter word worth 20 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1F4F4I1N1E1G2R1O1U1P3

1 + 4 + 4 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 3 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does affine group mean?