What is FFT and its applications?

Related questions

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

Tags

1. #fourier
2. #applications
3. #science
4. #algorithm
5. #mathematics
6. #computes
7. #transform
8. #discrete
9. #sequence
10. #widely
11. #engineering
12. #transforms
13. #inverse