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