| C06FAF
| Single one-dimensional real discrete Fourier transform, extra workspace for greater speed |
| C06FBF
| Single one-dimensional Hermitian discrete Fourier transform, extra workspace for greater speed |
| C06FCF
| Single one-dimensional complex discrete Fourier transform, extra workspace for greater speed |
| C06FFF
| One-dimensional complex discrete Fourier transform of multidimensional data |
| C06FJF
| Multidimensional complex discrete Fourier transform of multidimensional data |
| C06FKF
| Circular convolution or correlation of two real vectors, extra workspace for greater speed |