Eigenvectors of the DFT matrix
John
When is the discrete Fourier transform of a vector proportional to the original vector? And when that happens, what is the proportionality constant? In more formal language, what can we say about the eigenvectors and eigenvalues of the DFT matrix? Setup I mentioned in the previous post that Mathematica’s default convention for defining the DFT […] The post Eigenvectors of the DFT matrix first appeared on John D. Cook .