Block Diagram(pp.58) Functional block (block):is a symbol for the mathematical operation on the input signal to the block that produce the output. Transfer Function in block:components/elements... Arrow lines:signals and the signal flow. U(s) Transfer Function Y(s) G(s)Transfer Function G(s) Block Diagram( pp. 58) Functional block (block): is a symbol for the mathematical operation on the input signal to the block that produce the output. Transfer Function in block: components/elements… Arrow lines: signals and the signal flow. U(s) Y(s)