! line10.scl [0, -2, 0], [0, -1, 0], [0, 0, 0], [0, 1, 0] line of tetrads 10 ! Fokblock([3200/3087, 200/189, 25/24], [5, 3, 8]) = Fokblock([200/189, 3200/3087, 64/63], [6, 5, 1]) ! = Fokblock([25/24, 3200/3087, 64/63], [6, 5, 3]) patent val wakalix ! 21/20 25/21 5/4 21/16 10/7 3/2 5/3 7/4 40/21 2/1