Signal flow graphs (SFG) are graphical representations used to visualize the flow of signals and the relationships between variables in a system of linear algebraic equations.

We study distributed network flows as solvers in continuous time for the linear algebraic equation z = Hy. Each node i holds a row hiT of the matrix H and the corresponding entry zi in the vector z.

Author’s note: This article shows how to derive circuit gain equations via a signal flow graph. With practice you may be able to write a gain equation by locating signal paths and loops in the ...

A simple way to create a gain equations is via a Signal Flow Graph (SFG). Mason’s Gain Formula is the input to output gain formula (transfer function) for any Linear Circuit.