Das Original von Sapwin ( + C3 C1 R2 R4) s^2 ( + C5 C3 C1 R2 R4 R6 + C5 C3 C1 R2 R4 R5 + C6 C3 C1 R2 R4 R6) s^3 ( + C6 C5 C3 C1 R2 R4 R5 R6) s^4 ------------------------------------------------------------------------------ ( +1) ( + C1 R1 + C2 R2 + C3 R3 + C4 R4 + C5 R6 + C5 R5 + C6 R6) s ( + C2 C1 R1 R2 + C3 C1 R1 R3 + C4 C1 R1 R4 + C5 C1 R1 R6 + C5 C1 R1 R5 + C6 C1 R1 R6 + C3 C2 R2 R3 + C4 C2 R2 R4 + C5 C2 R2 R6 + C5 C2 R2 R5 + C6 C2 R2 R6 + C4 C3 R3 R4 + C5 C3 R4 R6 + C5 C3 R3 R6 + C5 C3 R3 R5 + C6 C3 R3 R6 + C5 C4 R4 R6 + C5 C4 R4 R5 + C6 C4 R4 R6 + C6 C5 R5 R6) s^2 ( + C3 C2 C1 R1 R2 R3 + C4 C2 C1 R1 R2 R4 + C5 C2 C1 R1 R2 R6 + C5 C2 C1 R1 R2 R5 + C6 C2 C1 R1 R2 R6 + C4 C3 C1 R1 R3 R4 + C5 C3 C1 R2 R4 R6 + C5 C3 C1 R1 R4 R6 + C5 C3 C1 R1 R3 R6 + C5 C3 C1 R1 R3 R5 + C6 C3 C1 R1 R3 R6 + C5 C4 C1 R1 R4 R6 + C5 C4 C1 R1 R4 R5 + C6 C4 C1 R1 R4 R6 + C6 C5 C1 R1 R5 R6 + C4 C3 C2 R2 R3 R4 + C5 C3 C2 R2 R4 R6 + C5 C3 C2 R2 R3 R6 + C5 C3 C2 R2 R3 R5 + C6 C3 C2 R2 R3 R6 + C5 C4 C2 R2 R4 R6 + C5 C4 C2 R2 R4 R5 + C6 C4 C2 R2 R4 R6 + C6 C5 C2 R2 R5 R6 + C5 C4 C3 R3 R4 R6 + C5 C4 C3 R3 R4 R5 + C6 C4 C3 R3 R4 R6 + C6 C5 C3 R3 R5 R6 + C6 C5 C4 R4 R5 R6) s^3 ( + C4 C3 C2 C1 R1 R2 R3 R4 + C5 C3 C2 C1 R1 R2 R4 R6 + C5 C3 C2 C1 R1 R2 R3 R6 + C5 C3 C2 C1 R1 R2 R3 R5 + C6 C3 C2 C1 R1 R2 R3 R6 + C5 C4 C2 C1 R1 R2 R4 R6 + C5 C4 C2 C1 R1 R2 R4 R5 + C6 C4 C2 C1 R1 R2 R4 R6 + C6 C5 C2 C1 R1 R2 R5 R6 + C5 C4 C3 C1 R1 R3 R4 R6 + C5 C4 C3 C1 R1 R3 R4 R5 + C6 C4 C3 C1 R1 R3 R4 R6 + C6 C5 C3 C1 R1 R3 R5 R6 + C6 C5 C4 C1 R1 R4 R5 R6 + C5 C4 C3 C2 R2 R3 R4 R6 + C5 C4 C3 C2 R2 R3 R4 R5 + C6 C4 C3 C2 R2 R3 R4 R6 + C6 C5 C3 C2 R2 R3 R5 R6 + C6 C5 C4 C2 R2 R4 R5 R6 + C6 C5 C4 C3 R3 R4 R5 R6) s^4 ( + C5 C4 C3 C2 C1 R1 R2 R3 R4 R6 + C5 C4 C3 C2 C1 R1 R2 R3 R4 R5 + C6 C4 C3 C2 C1 R1 R2 R3 R4 R6 + C6 C5 C3 C2 C1 R1 R2 R3 R5 R6 + C6 C5 C4 C2 C1 R1 R2 R4 R5 R6 + C6 C5 C4 C3 C1 R1 R3 R4 R5 R6 + C6 C5 C4 C3 C2 R2 R3 R4 R5 R6) s^5 ( + C6 C5 C4 C3 C2 C1 R1 R2 R3 R4 R5 R6) s^6 1. Modifikation: * ( + C3*C1*R2*R4)*s^2 ( + C5*C3*C1*R2*R4*R6 + C5*C3*C1*R2*R4*R5 + C6*C3*C1*R2*R4*R6)*s^3 ( + C6*C5*C3*C1*R2*R4*R5*R6)*s^4 ------------------------------------------------------------------------------ ( +1) ( + C1*R1 + C2*R2 + C3*R3 + C4*R4 + C5*R6 + C5*R5 + C6*R6)*s ( + C2*C1*R1*R2 + C3*C1*R1*R3 + C4*C1*R1*R4 + C5*C1*R1*R6 + C5*C1*R1*R5 + C6*C1*R1*R6 + C3*C2*R2*R3 + C4*C2*R2*R4 + C5*C2*R2*R6 + C5*C2*R2*R5 + C6*C2*R2*R6 + C4*C3*R3*R4 + C5*C3*R4*R6 + C5*C3*R3*R6 + C5*C3*R3*R5 + C6*C3*R3*R6 + C5*C4*R4*R6 + C5*C4*R4*R5 + C6*C4*R4*R6 + C6*C5*R5*R6)*s^2 ( + C3*C2*C1*R1*R2*R3 + C4*C2*C1*R1*R2*R4 + C5*C2*C1*R1*R2*R6 + C5*C2*C1*R1*R2*R5 + C6*C2*C1*R1*R2*R6 + C4*C3*C1*R1*R3*R4 + C5*C3*C1*R2*R4*R6 + C5*C3*C1*R1*R4*R6 + C5*C3*C1*R1*R3*R6 + C5*C3*C1*R1*R3*R5 + C6*C3*C1*R1*R3*R6 + C5*C4*C1*R1*R4*R6 + C5*C4*C1*R1*R4*R5 + C6*C4*C1*R1*R4*R6 + C6*C5*C1*R1*R5*R6 + C4*C3*C2*R2*R3*R4 + C5*C3*C2*R2*R4*R6 + C5*C3*C2*R2*R3*R6 + C5*C3*C2*R2*R3*R5 + C6*C3*C2*R2*R3*R6 + C5*C4*C2*R2*R4*R6 + C5*C4*C2*R2*R4*R5 + C6*C4*C2*R2*R4*R6 + C6*C5*C2*R2*R5*R6 + C5*C4*C3*R3*R4*R6 + C5*C4*C3*R3*R4*R5 + C6*C4*C3*R3*R4*R6 + C6*C5*C3*R3*R5*R6 + C6*C5*C4*R4*R5*R6)*s^3 ( + C4*C3*C2*C1*R1*R2*R3*R4 + C5*C3*C2*C1*R1*R2*R4*R6 + C5*C3*C2*C1*R1*R2*R3*R6 + C5*C3*C2*C1*R1*R2*R3*R5 + C6*C3*C2*C1*R1*R2*R3*R6 + C5*C4*C2*C1*R1*R2*R4*R6 + C5*C4*C2*C1*R1*R2*R4*R5 + C6*C4*C2*C1*R1*R2*R4*R6 + C6*C5*C2*C1*R1*R2*R5*R6 + C5*C4*C3*C1*R1*R3*R4*R6 + C5*C4*C3*C1*R1*R3*R4*R5 + C6*C4*C3*C1*R1*R3*R4*R6 + C6*C5*C3*C1*R1*R3*R5*R6 + C6*C5*C4*C1*R1*R4*R5*R6 + C5*C4*C3*C2*R2*R3*R4*R6 + C5*C4*C3*C2*R2*R3*R4*R5 + C6*C4*C3*C2*R2*R3*R4*R6 + C6*C5*C3*C2*R2*R3*R5*R6 + C6*C5*C4*C2*R2*R4*R5*R6 + C6*C5*C4*C3*R3*R4*R5*R6)*s^4 ( + C5*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C5*C4*C3*C2*C1*R1*R2*R3*R4*R5 + C6*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C6*C5*C3*C2*C1*R1*R2*R3*R5*R6 + C6*C5*C4*C2*C1*R1*R2*R4*R5*R6 + C6*C5*C4*C3*C1*R1*R3*R4*R5*R6 + C6*C5*C4*C3*C2*R2*R3*R4*R5*R6)*s^5 ( + C6*C5*C4*C3*C2*C1*R1*R2*R3*R4*R5*R6)*s^6 2. Modifikation: '(' eingerückt (C3*C1*R2*R4)*s^2 +(C5*C3*C1*R2*R4*R6 + C5*C3*C1*R2*R4*R5 + C6*C3*C1*R2*R4*R6)*s^3 +(C6*C5*C3*C1*R2*R4*R5*R6)*s^4 ------------------------------------------------------------------------------ (1 +(C1*R1 + C2*R2 + C3*R3 + C4*R4 + C5*R6 + C5*R5 + C6*R6)*s +(C2*C1*R1*R2 + C3*C1*R1*R3 + C4*C1*R1*R4 + C5*C1*R1*R6 + C5*C1*R1*R5 + C6*C1*R1*R6 + C3*C2*R2*R3 + C4*C2*R2*R4 + C5*C2*R2*R6 + C5*C2*R2*R5 + C6*C2*R2*R6 + C4*C3*R3*R4 + C5*C3*R4*R6 + C5*C3*R3*R6 + C5*C3*R3*R5 + C6*C3*R3*R6 + C5*C4*R4*R6 + C5*C4*R4*R5 + C6*C4*R4*R6 + C6*C5*R5*R6)*s^2 +(C3*C2*C1*R1*R2*R3 + C4*C2*C1*R1*R2*R4 + C5*C2*C1*R1*R2*R6 + C5*C2*C1*R1*R2*R5 + C6*C2*C1*R1*R2*R6 + C4*C3*C1*R1*R3*R4 + C5*C3*C1*R2*R4*R6 + C5*C3*C1*R1*R4*R6 + C5*C3*C1*R1*R3*R6 + C5*C3*C1*R1*R3*R5 + C6*C3*C1*R1*R3*R6 + C5*C4*C1*R1*R4*R6 + C5*C4*C1*R1*R4*R5 + C6*C4*C1*R1*R4*R6 + C6*C5*C1*R1*R5*R6 + C4*C3*C2*R2*R3*R4 + C5*C3*C2*R2*R4*R6 + C5*C3*C2*R2*R3*R6 + C5*C3*C2*R2*R3*R5 + C6*C3*C2*R2*R3*R6 + C5*C4*C2*R2*R4*R6 + C5*C4*C2*R2*R4*R5 + C6*C4*C2*R2*R4*R6 + C6*C5*C2*R2*R5*R6 + C5*C4*C3*R3*R4*R6 + C5*C4*C3*R3*R4*R5 + C6*C4*C3*R3*R4*R6 + C6*C5*C3*R3*R5*R6 + C6*C5*C4*R4*R5*R6)*s^3 +(C4*C3*C2*C1*R1*R2*R3*R4 + C5*C3*C2*C1*R1*R2*R4*R6 + C5*C3*C2*C1*R1*R2*R3*R6 + C5*C3*C2*C1*R1*R2*R3*R5 + C6*C3*C2*C1*R1*R2*R3*R6 + C5*C4*C2*C1*R1*R2*R4*R6 + C5*C4*C2*C1*R1*R2*R4*R5 + C6*C4*C2*C1*R1*R2*R4*R6 + C6*C5*C2*C1*R1*R2*R5*R6 + C5*C4*C3*C1*R1*R3*R4*R6 + C5*C4*C3*C1*R1*R3*R4*R5 + C6*C4*C3*C1*R1*R3*R4*R6 + C6*C5*C3*C1*R1*R3*R5*R6 + C6*C5*C4*C1*R1*R4*R5*R6 + C5*C4*C3*C2*R2*R3*R4*R6 + C5*C4*C3*C2*R2*R3*R4*R5 + C6*C4*C3*C2*R2*R3*R4*R6 + C6*C5*C3*C2*R2*R3*R5*R6 + C6*C5*C4*C2*R2*R4*R5*R6 + C6*C5*C4*C3*R3*R4*R5*R6)*s^4 +(C5*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C5*C4*C3*C2*C1*R1*R2*R3*R4*R5 + C6*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C6*C5*C3*C2*C1*R1*R2*R3*R5*R6 + C6*C5*C4*C2*C1*R1*R2*R4*R5*R6 + C6*C5*C4*C3*C1*R1*R3*R4*R5*R6 + C6*C5*C4*C3*C2*R2*R3*R4*R5*R6)*s^5 +(C6*C5*C4*C3*C2*C1*R1*R2*R3*R4*R5*R6)*s^6 3. Modifikation: kompakter ( (C3*C1*R2*R4)*s^2 +(C5*C3*C1*R2*R4*R6 + C5*C3*C1*R2*R4*R5 + C6*C3*C1*R2*R4*R6)*s^3 +(C6*C5*C3*C1*R2*R4*R5*R6)*s^4 )/ ( 1 +(C1*R1 + C2*R2 + C3*R3 + C4*R4 + C5*R6 + C5*R5 + C6*R6)*s +(C2*C1*R1*R2 + C3*C1*R1*R3 + C4*C1*R1*R4 + C5*C1*R1*R6 + C5*C1*R1*R5 + C6*C1*R1*R6 + C3*C2*R2*R3 + C4*C2*R2*R4 + C5*C2*R2*R6 + C5*C2*R2*R5 + C6*C2*R2*R6 + C4*C3*R3*R4 + C5*C3*R4*R6 + C5*C3*R3*R6 + C5*C3*R3*R5 + C6*C3*R3*R6 + C5*C4*R4*R6 + C5*C4*R4*R5 + C6*C4*R4*R6 + C6*C5*R5*R6)*s^2 +(C3*C2*C1*R1*R2*R3 + C4*C2*C1*R1*R2*R4 + C5*C2*C1*R1*R2*R6 + C5*C2*C1*R1*R2*R5 + C6*C2*C1*R1*R2*R6 + C4*C3*C1*R1*R3*R4 + C5*C3*C1*R2*R4*R6 + C5*C3*C1*R1*R4*R6 + C5*C3*C1*R1*R3*R6 + C5*C3*C1*R1*R3*R5 + C6*C3*C1*R1*R3*R6 + C5*C4*C1*R1*R4*R6 + C5*C4*C1*R1*R4*R5 + C6*C4*C1*R1*R4*R6 + C6*C5*C1*R1*R5*R6 + C4*C3*C2*R2*R3*R4 + C5*C3*C2*R2*R4*R6 + C5*C3*C2*R2*R3*R6 + C5*C3*C2*R2*R3*R5 + C6*C3*C2*R2*R3*R6 + C5*C4*C2*R2*R4*R6 + C5*C4*C2*R2*R4*R5 + C6*C4*C2*R2*R4*R6 + C6*C5*C2*R2*R5*R6 + C5*C4*C3*R3*R4*R6 + C5*C4*C3*R3*R4*R5 + C6*C4*C3*R3*R4*R6 + C6*C5*C3*R3*R5*R6 + C6*C5*C4*R4*R5*R6)*s^3 +(C4*C3*C2*C1*R1*R2*R3*R4 + C5*C3*C2*C1*R1*R2*R4*R6 + C5*C3*C2*C1*R1*R2*R3*R6 + C5*C3*C2*C1*R1*R2*R3*R5 + C6*C3*C2*C1*R1*R2*R3*R6 + C5*C4*C2*C1*R1*R2*R4*R6 + C5*C4*C2*C1*R1*R2*R4*R5 + C6*C4*C2*C1*R1*R2*R4*R6 + C6*C5*C2*C1*R1*R2*R5*R6 + C5*C4*C3*C1*R1*R3*R4*R6 + C5*C4*C3*C1*R1*R3*R4*R5 + C6*C4*C3*C1*R1*R3*R4*R6 + C6*C5*C3*C1*R1*R3*R5*R6 + C6*C5*C4*C1*R1*R4*R5*R6 + C5*C4*C3*C2*R2*R3*R4*R6 + C5*C4*C3*C2*R2*R3*R4*R5 + C6*C4*C3*C2*R2*R3*R4*R6 + C6*C5*C3*C2*R2*R3*R5*R6 + C6*C5*C4*C2*R2*R4*R5*R6 + C6*C5*C4*C3*R3*R4*R5*R6)*s^4 +(C5*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C5*C4*C3*C2*C1*R1*R2*R3*R4*R5 + C6*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C6*C5*C3*C2*C1*R1*R2*R3*R5*R6 + C6*C5*C4*C2*C1*R1*R2*R4*R5*R6 + C6*C5*C4*C3*C1*R1*R3*R4*R5*R6 + C6*C5*C4*C3*C2*R2*R3*R4*R5*R6)*s^5 +(C6*C5*C4*C3*C2*C1*R1*R2*R3*R4*R5*R6)*s^6 ) 4. Für LTspice Laplace= +( (C3*C1*R2*R4)*s**2 + +(C5*C3*C1*R2*R4*R6 + C5*C3*C1*R2*R4*R5 + C6*C3*C1*R2*R4*R6)*s**3 + +(C6*C5*C3*C1*R2*R4*R5*R6)*s**4 )/ + ( 1 + +(C1*R1 + C2*R2 + C3*R3 + C4*R4 + C5*R6 + C5*R5 + C6*R6)*s + +(C2*C1*R1*R2 + C3*C1*R1*R3 + C4*C1*R1*R4 + C5*C1*R1*R6 + C5*C1*R1*R5 + C6*C1*R1*R6 + C3*C2*R2*R3 + C4*C2*R2*R4 + C5*C2*R2*R6 + C5*C2*R2*R5 + C6*C2*R2*R6 + C4*C3*R3*R4 + C5*C3*R4*R6 + C5*C3*R3*R6 + C5*C3*R3*R5 + C6*C3*R3*R6 + C5*C4*R4*R6 + C5*C4*R4*R5 + C6*C4*R4*R6 + C6*C5*R5*R6)*s**2 + +(C3*C2*C1*R1*R2*R3 + C4*C2*C1*R1*R2*R4 + C5*C2*C1*R1*R2*R6 + C5*C2*C1*R1*R2*R5 + C6*C2*C1*R1*R2*R6 + C4*C3*C1*R1*R3*R4 + C5*C3*C1*R2*R4*R6 + C5*C3*C1*R1*R4*R6 + C5*C3*C1*R1*R3*R6 + C5*C3*C1*R1*R3*R5 + C6*C3*C1*R1*R3*R6 + C5*C4*C1*R1*R4*R6 + C5*C4*C1*R1*R4*R5 + C6*C4*C1*R1*R4*R6 + C6*C5*C1*R1*R5*R6 + C4*C3*C2*R2*R3*R4 + C5*C3*C2*R2*R4*R6 + C5*C3*C2*R2*R3*R6 + C5*C3*C2*R2*R3*R5 + C6*C3*C2*R2*R3*R6 + C5*C4*C2*R2*R4*R6 + C5*C4*C2*R2*R4*R5 + C6*C4*C2*R2*R4*R6 + C6*C5*C2*R2*R5*R6 + C5*C4*C3*R3*R4*R6 + C5*C4*C3*R3*R4*R5 + C6*C4*C3*R3*R4*R6 + C6*C5*C3*R3*R5*R6 + C6*C5*C4*R4*R5*R6)*s**3 + +(C4*C3*C2*C1*R1*R2*R3*R4 + C5*C3*C2*C1*R1*R2*R4*R6 + C5*C3*C2*C1*R1*R2*R3*R6 + C5*C3*C2*C1*R1*R2*R3*R5 + C6*C3*C2*C1*R1*R2*R3*R6 + C5*C4*C2*C1*R1*R2*R4*R6 + C5*C4*C2*C1*R1*R2*R4*R5 + C6*C4*C2*C1*R1*R2*R4*R6 + C6*C5*C2*C1*R1*R2*R5*R6 + C5*C4*C3*C1*R1*R3*R4*R6 + C5*C4*C3*C1*R1*R3*R4*R5 + C6*C4*C3*C1*R1*R3*R4*R6 + C6*C5*C3*C1*R1*R3*R5*R6 + C6*C5*C4*C1*R1*R4*R5*R6 + C5*C4*C3*C2*R2*R3*R4*R6 + C5*C4*C3*C2*R2*R3*R4*R5 + C6*C4*C3*C2*R2*R3*R4*R6 + C6*C5*C3*C2*R2*R3*R5*R6 + C6*C5*C4*C2*R2*R4*R5*R6 + C6*C5*C4*C3*R3*R4*R5*R6)*s**4 + +(C5*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C5*C4*C3*C2*C1*R1*R2*R3*R4*R5 + C6*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C6*C5*C3*C2*C1*R1*R2*R3*R5*R6 + C6*C5*C4*C2*C1*R1*R2*R4*R5*R6 + C6*C5*C4*C3*C1*R1*R3*R4*R5*R6 + C6*C5*C4*C3*C2*R2*R3*R4*R5*R6)*s**5 + +(C6*C5*C4*C3*C2*C1*R1*R2*R3*R4*R5*R6)*s**6 ) 5. Als subcircuit für LTspice .subckt FILT6 1 2 3 4 E1 1 2 3 4 Laplace= +( (C3*C1*R2*R4)*s**2 + +(C5*C3*C1*R2*R4*R6 + C5*C3*C1*R2*R4*R5 + C6*C3*C1*R2*R4*R6)*s**3 + +(C6*C5*C3*C1*R2*R4*R5*R6)*s**4 )/ + ( 1 + +(C1*R1 + C2*R2 + C3*R3 + C4*R4 + C5*R6 + C5*R5 + C6*R6)*s + +(C2*C1*R1*R2 + C3*C1*R1*R3 + C4*C1*R1*R4 + C5*C1*R1*R6 + C5*C1*R1*R5 + C6*C1*R1*R6 + C3*C2*R2*R3 + C4*C2*R2*R4 + C5*C2*R2*R6 + C5*C2*R2*R5 + C6*C2*R2*R6 + C4*C3*R3*R4 + C5*C3*R4*R6 + C5*C3*R3*R6 + C5*C3*R3*R5 + C6*C3*R3*R6 + C5*C4*R4*R6 + C5*C4*R4*R5 + C6*C4*R4*R6 + C6*C5*R5*R6)*s**2 + +(C3*C2*C1*R1*R2*R3 + C4*C2*C1*R1*R2*R4 + C5*C2*C1*R1*R2*R6 + C5*C2*C1*R1*R2*R5 + C6*C2*C1*R1*R2*R6 + C4*C3*C1*R1*R3*R4 + C5*C3*C1*R2*R4*R6 + C5*C3*C1*R1*R4*R6 + C5*C3*C1*R1*R3*R6 + C5*C3*C1*R1*R3*R5 + C6*C3*C1*R1*R3*R6 + C5*C4*C1*R1*R4*R6 + C5*C4*C1*R1*R4*R5 + C6*C4*C1*R1*R4*R6 + C6*C5*C1*R1*R5*R6 + C4*C3*C2*R2*R3*R4 + C5*C3*C2*R2*R4*R6 + C5*C3*C2*R2*R3*R6 + C5*C3*C2*R2*R3*R5 + C6*C3*C2*R2*R3*R6 + C5*C4*C2*R2*R4*R6 + C5*C4*C2*R2*R4*R5 + C6*C4*C2*R2*R4*R6 + C6*C5*C2*R2*R5*R6 + C5*C4*C3*R3*R4*R6 + C5*C4*C3*R3*R4*R5 + C6*C4*C3*R3*R4*R6 + C6*C5*C3*R3*R5*R6 + C6*C5*C4*R4*R5*R6)*s**3 + +(C4*C3*C2*C1*R1*R2*R3*R4 + C5*C3*C2*C1*R1*R2*R4*R6 + C5*C3*C2*C1*R1*R2*R3*R6 + C5*C3*C2*C1*R1*R2*R3*R5 + C6*C3*C2*C1*R1*R2*R3*R6 + C5*C4*C2*C1*R1*R2*R4*R6 + C5*C4*C2*C1*R1*R2*R4*R5 + C6*C4*C2*C1*R1*R2*R4*R6 + C6*C5*C2*C1*R1*R2*R5*R6 + C5*C4*C3*C1*R1*R3*R4*R6 + C5*C4*C3*C1*R1*R3*R4*R5 + C6*C4*C3*C1*R1*R3*R4*R6 + C6*C5*C3*C1*R1*R3*R5*R6 + C6*C5*C4*C1*R1*R4*R5*R6 + C5*C4*C3*C2*R2*R3*R4*R6 + C5*C4*C3*C2*R2*R3*R4*R5 + C6*C4*C3*C2*R2*R3*R4*R6 + C6*C5*C3*C2*R2*R3*R5*R6 + C6*C5*C4*C2*R2*R4*R5*R6 + C6*C5*C4*C3*R3*R4*R5*R6)*s**4 + +(C5*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C5*C4*C3*C2*C1*R1*R2*R3*R4*R5 + C6*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C6*C5*C3*C2*C1*R1*R2*R3*R5*R6 + C6*C5*C4*C2*C1*R1*R2*R4*R5*R6 + C6*C5*C4*C3*C1*R1*R3*R4*R5*R6 + C6*C5*C4*C3*C2*R2*R3*R4*R5*R6)*s**5 + +(C6*C5*C4*C3*C2*C1*R1*R2*R3*R4*R5*R6)*s**6 ) + method=2 .ends 6. Nochmals für LTspice .subckt FILT6 1 2 3 4 E1 1 2 3 4 Laplace= +( (C3*C1*R2*R4)*s**2 + +(C5*C3*C1*R2*R4*R6 + C5*C3*C1*R2*R4*R5 + C6*C3*C1*R2*R4*R6)*s**3 + +(C6*C5*C3*C1*R2*R4*R5*R6)*s**4 )/ + ( 1 + +(C1*R1 + C2*R2 + C3*R3 + C4*R4 + C5*R6 + C5*R5 + C6*R6)*s + +(C2*C1*R1*R2 + C3*C1*R1*R3 + C4*C1*R1*R4 + C5*C1*R1*R6 + C5*C1*R1*R5 + C6*C1*R1*R6 + C3*C2*R2*R3 + C4*C2*R2*R4 + C5*C2*R2*R6 + C5*C2*R2*R5 + + C6*C2*R2*R6 + C4*C3*R3*R4 + C5*C3*R4*R6 + C5*C3*R3*R6 + C5*C3*R3*R5 + C6*C3*R3*R6 + C5*C4*R4*R6 + C5*C4*R4*R5 + C6*C4*R4*R6 + C6*C5*R5*R6)*s**2 + +(C3*C2*C1*R1*R2*R3 + C4*C2*C1*R1*R2*R4 + C5*C2*C1*R1*R2*R6 + C5*C2*C1*R1*R2*R5 + C6*C2*C1*R1*R2*R6 + C4*C3*C1*R1*R3*R4 + C5*C3*C1*R2*R4*R6 + + C5*C3*C1*R1*R4*R6 + C5*C3*C1*R1*R3*R6 + C5*C3*C1*R1*R3*R5 + C6*C3*C1*R1*R3*R6 + C5*C4*C1*R1*R4*R6 + C5*C4*C1*R1*R4*R5 + C6*C4*C1*R1*R4*R6 + + C6*C5*C1*R1*R5*R6 + C4*C3*C2*R2*R3*R4 + C5*C3*C2*R2*R4*R6 + C5*C3*C2*R2*R3*R6 + C5*C3*C2*R2*R3*R5 + C6*C3*C2*R2*R3*R6 + C5*C4*C2*R2*R4*R6 + + C5*C4*C2*R2*R4*R5 + C6*C4*C2*R2*R4*R6 + C6*C5*C2*R2*R5*R6 + C5*C4*C3*R3*R4*R6 + C5*C4*C3*R3*R4*R5 + C6*C4*C3*R3*R4*R6 + C6*C5*C3*R3*R5*R6 + + C6*C5*C4*R4*R5*R6)*s**3 + +(C4*C3*C2*C1*R1*R2*R3*R4 + C5*C3*C2*C1*R1*R2*R4*R6 + C5*C3*C2*C1*R1*R2*R3*R6 + C5*C3*C2*C1*R1*R2*R3*R5 + C6*C3*C2*C1*R1*R2*R3*R6 + + C5*C4*C2*C1*R1*R2*R4*R6 + C5*C4*C2*C1*R1*R2*R4*R5 + C6*C4*C2*C1*R1*R2*R4*R6 + C6*C5*C2*C1*R1*R2*R5*R6 + C5*C4*C3*C1*R1*R3*R4*R6 + + C5*C4*C3*C1*R1*R3*R4*R5 + C6*C4*C3*C1*R1*R3*R4*R6 + C6*C5*C3*C1*R1*R3*R5*R6 + C6*C5*C4*C1*R1*R4*R5*R6 + C5*C4*C3*C2*R2*R3*R4*R6 + + C5*C4*C3*C2*R2*R3*R4*R5 + C6*C4*C3*C2*R2*R3*R4*R6 + C6*C5*C3*C2*R2*R3*R5*R6 + C6*C5*C4*C2*R2*R4*R5*R6 + C6*C5*C4*C3*R3*R4*R5*R6)*s**4 + +(C5*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C5*C4*C3*C2*C1*R1*R2*R3*R4*R5 + C6*C4*C3*C2*C1*R1*R2*R3*R4*R6 + C6*C5*C3*C2*C1*R1*R2*R3*R5*R6 + + C6*C5*C4*C2*C1*R1*R2*R4*R5*R6 + C6*C5*C4*C3*C1*R1*R3*R4*R5*R6 + C6*C5*C4*C3*C2*R2*R3*R4*R5*R6)*s**5 + +(C6*C5*C4*C3*C2*C1*R1*R2*R3*R4*R5*R6)*s**6 ) + method=2 .ends