When I use the cvx matlab toolbox, I met a puzzled problem. The function of fft (or dct, wavelet, etc.) cannot be recognized by the type of ‘cvx’. For the 1-d fft, it can be constructed to an equivalent matrix. But for the 2-d fft, how to transform it to the matrix form ?
How can a 2-d fft be constructed to an equivalent matrix in cvx toolbox?
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