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idft is inverse of dft

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Q: What are the differences between dft and idft?
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What is the unit of the displacement?

dft


What the procedure of dft?

The procedure of DFT can be found by following this website: gov.uk/government/organisations/department-for-transport/about/complaints-procedure.


Difference between the DFT and the FFt?

A Discrete Fourier Transform is simply the name given to the Fourier Transform when it is applied to digital (discrete) rather than an analog (continuous) signal. An FFT (Fast Fourier Transform) is a faster version of the DFT that can be applied when the number of samples in the signal is a power of two. An FFT computation takes approximately N * log2(N) operations, whereas a DFT takes approximately N^2 operations, so the FFT is significantly faster simple answer is FFT = Fast DFT


Why FFT is faster than DFT?

FFT is faster than DFT because no. of complex multiplication in DFT is N^2 while in FFT no. of complex multiplications are N/2(log2N). for example if N=8 no. of complex multiplications required in DFT are 64. while no. of complex multiplications required in FFT are 12 thus reduces computation time.


What is the si unit of displacment?

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Painting thickness are measured in dft?

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What does the UK DFT government department do?

The UK DFT government department in the United Kingdom looks after the transportation needs of the country. It is the equivalent of the U.S. Department of Transportation.


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In the UK it is the Department for Transport. (DfT)