160 P. A. Hansen, 



3 (6,+26,) = (0.6) + (2.8) + (4.10) 
3 (.—2c) = 1.7) + (3.9) + (5.14) 
3. (6, + c,) = (0.6) — |(2.8) + (4.10)! sin 30° 
3(,— ec) = |(1.T) + (5.11)! sin 30° — (3.9) 
3. (8, +5) = |(1.T) — (5.11)} cos 30° 
3. (5, — 5) = |(2.8) — (%.10)| cos 30° 
(+ = +) Cin)} sin 300 
3(, — c,) = |) — (Fr)! cos 30° 
2) Wenn man den Umkreis in 16 Theile theilt, so wird 
Bl ra —22 Be — Une al 
und die dazu gehörigen Werthe von Y sind 
Yan Ass ner 
Sei nun 
08)=N+Y, H)=h-% 
(1N)=-NrN, )=h-% 
2.0)=1+Y, Gh Yo 
HR ur Hi Ye = — Yı 
(0.4)= (0.8) + (4.12) (0.2) = (0.k) + (2.6) 
4.5)= (1.9) +(5.13) (A1.3)=(.5)+ (3.7) 
(2.6) = (2.10) + (6.1%) 
(3.N= (3.11) + (7.15) 
dann wird 
k (c,+2c,) = (0.2) 
k(—26,) = (1.3) 
k (c,+ c,) = (0.8) — (4.12) 
k(c,— c,) = |[(1.9) — (5.13)) — [(3.11) — (T.15)]| cos 45° 
Sc, =(0.k) — (2.6) 
