Bode's theorem

Bode's theorem is a principle in control engineering that helps analyze how a system responds to different input signals over a range of frequencies. It allows engineers to estimate how a system's gain (amplitude) and phase (timing) change with frequency, using simple plots called Bode plots. These tools are essential for designing stable and efficient systems, such as electronics and control devices, by predicting how they will behave across various signal speeds, ensuring proper performance without overly complex calculations.