Figure 2From: Eigenvectors of the Discrete Fourier Transform Based on the Bilinear Transform(a) The total norm of error versus k in for N = 32, 40, 48, 56, and k = 4.3. The total norm of error is minimum when k ≈ 4.3. (b) Error norms between the discrete Hermite-Gaussian like eigenvectors and the samples of the Hermite-Gaussian functions when for k = 3, 4, and k = 4.3 and with N = 32.Back to article page