# what are the application of fourier transform in finding frequency response? [duplicate]

i need the application of Fourier transform in finding frequency response in mathematical terms

• Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
– Community Bot
Nov 2 '21 at 5:01

If you have an LTI system with an input signal $$x(t)$$ and an output signal $$y(t)$$ the transfer function can be found as
$$H(\omega) = \frac{\mathcal{F}\{y(t)\}}{\mathcal{F}\{x(t)\}}$$
where $$\mathcal{F}\{\}$$ denotes the Fourier Transform.