What is the need for FFT?

Related questions

1. How is OFDM different from FDM?
2. What is sampling rate and sampling frequency?
3. What is frequency resolution of FFT?
4. What is a frequency bin?
5. What is symbol duration in OFDM?
6. What is FFT and its applications?
7. What is FFT in DSP?
8. What is frequency axis?
9. What does a Fourier series do?
10. What is the transfer function of a filter?

Tags

1. #working
2. #derives
3. #importance
4. #spatial
5. #feasible
6. #computationally
7. #temporal
8. #applications
9. #polynomial
10. #multiplication
11. #frequency
12. #domain
13. #signal
14. #important
15. #includes
16. #processing
17. #large
18. #image
19. #integer
20. #equally