Fourier Series 1 Engineering mathematics

A Fourier series is a powerful mathematical tool that allows us to represent periodic functions as an infinite sum of sines and cosines. The key idea is that even complicated waveforms can be broken down into simple oscillations with different frequencies, amplitudes, and phases. By combining these trigonometric components, the Fourier series provides a way to analyze and reconstruct signals, making it fundamental in fields such as signal processing, acoustics, and electrical engineering. The be