45 40 35 = 30 : 25 - 20 - 15 - 10 5 - 0 0 8 10 t 12 14 16 18 20 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 t/T sin(cot) sin(3cot) sin(5cot) sin(7cot) sin(9cot) suma 0.0 0.2 0.4 0.6 0.8 t/T 1.0 1 3 5 7 9 11 n Four, komponenty sin(ncot) 3 5 7 9 11 n Four, komponenty sin(ncot)