What is the difference between DTFT and DFT?

Question

Accepted Answer

DTFT is a continuous function that represents the frequency content of a discrete-time signal, while DFT is a discrete function that represents the frequency content of a finite-length sequence.

DTFT is defined for both finite and infinite-length signals, while DFT is only defined for finite-length sequences.
DTFT is a continuous function in frequency domain, while DFT is a discrete function in frequency domain.
DTFT provides a complete representation of the frequency content of a signal, while DFT provides a sampled representation of the frequency content.
DTFT is typically used for analyzing continuous-time signals, while DFT is commonly used for analyzing discrete-time signals.
DTFT is computed using an integral, while DFT is computed using a finite sum.
Example: DTFT can be used to analyze the frequency content of a continuous-time audio signal, while DFT can be used to analyze the frequency content of a finite-length audio clip.

What is the difference between DTFT and DFT?

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