You will need complex arithmetic to evaluate a gain equation, but not in the formula derivation A simple way to create a gain equations is via a Signal Flow Graph (SFG ... from the circuit schematic.

SFGs fall under Graph theory, a fun branch of math ... Stray components are included in the node impedance. The example circuit is a single op-amp circuit with multiple inputs that can represent many ...

This is a new link between continuous-time quantum walks and computational complexity theory and it indicates ... the proposed quantum circuit on an example circulant graph using a two-qubit ...