Transfer function - Parameter used to characterize the response of a system. It can help to identify a system and it's properties.

The basic equation for Transfer Function given as;



is the Laplace transform of the input signal.

is the Laplace transform of the output signal.

Why it is useful

• It turns differential equations into algebraic expressions, which are much easier to analyse.

• It helps predict system response to different inputs such as steps, impulses, and sinusoids.

• It is widely used in control systems, vibrations, electronics, and signal processing.