## {4,4}, tetromino 2 (L), solution 28 e2. angleunit(pi/2) # the line below lets us specify internal angles angleofs(pi) unittile(1,1,2,1,2,2,1,1,2,3) # the Conway notation conway("[0 7](1 4)[2 3][5 8][6 9]") sublines(1)