I have figured out the correct Fourier representation of a voltage or current source. It is stuck in a minor complex circuit (series-parallel or something along those lines).

I want to find the output voltage across a resistance or certain part of the circuit. Can I change my circuit into a s-domain representation, get the output equation in terms of s-values, then plug in n*j*w for s?

N = # of harmonic

j = complex

w = omega (2*pi*freq)

Is this applicable? Otherwise, am I forced to find my complex representation of the inductors/capacitors in terms of n*j*w by hand? I'm basically trying to simplify my circuit from the s-domain, and then substituting my Fourier expression & n*j*w expressions last.

I know our variable names may be off compared to what traditional E.E's use, however, any input is appreciated.