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I have discrete data x[n]=[1 2 2] and h[n]=[3 4 1]. I can find their frequency counterparts using the fourier series x[iw]=[5 -1 -1] & h[iw]=[8 (1/2-3*sqrt(3)*i/2) (1/2+3*sqrt(3)*i/2)]. How can I multiply them in the frequency domain so that I can then convert them back into time domain (which I can do)? Convolution in time, but I am trying to multiply in freq. domain and using the freq. data.

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