Signal Flow Graphs

Signal Flow Graphs (SFGs) are visual representations used to illustrate the flow of signals in a system, particularly in engineering and control theory. They consist of nodes (points) that represent system variables and directed branches (arrows) that show the relationship and flow between these variables. By analyzing SFGs, we can understand how changes in one part of a system affect others, making it easier to design and analyze complex systems like electrical circuits or control mechanisms. Essentially, they help simplify and clarify the interactions within a system, enabling better problem-solving and system design.