Optical Computing, Fourier Transform, Silicon Photonics, Signal Processing.
operations required for the “naive” O(n²) DFT. The difference between 24 and 64 operations might not seem like much, but when the amount of data increases, things quickly add up; for a 1024-element input, the FFT requires 10,240 operations compared to the 1,056,784 operations required by the DFT.