| fftw | Compute fft using fftw3 |
| fftw2d | Compute a two-dimensional FFT on a matrix using FFTW3 |
| fftw3d | Compute a two-dimensional FFT on a matrix using FFTW3 |
| fftw_c2c | Compute fft using fftw3 |
| fftw_c2c_2d | Compute a two-dimensional FFT on a matrix using FFTW3 |
| fftw_c2c_3d | Compute a two-dimensional FFT on a matrix using FFTW3 |
| fftw_c2c_xd | Compute a two-dimensional FFT on a matrix using FFTW3 |
| fftw_c2r | Compute fft using fftw3 |
| fftw_r2c | Compute fft using fftw3 |
| fftw_r2c_2d | Compute a two-dimensional FFT on a matrix using FFTW3 |
| fftw_r2c_3d | Compute a two-dimensional FFT on a matrix using FFTW3 |
| mvfftw | Compute the FFT on each column of a matrix using FFTW3 |
| mvfftw_c2c | Compute the FFT on each column of a matrix using FFTW3 |
| mvfftw_c2r | Compute the FFT on each column of a matrix using FFTW3 |
| mvfftw_r2c | Compute the FFT on each column of a matrix using FFTW3 |