Index - D
| delay | DSP.Basic |
| delay1 | DSP.Basic |
| det | Matrix.LU |
| dft | Numeric.Transform.Fourier.DFT |
| downsample | DSP.Basic |
| downsampleRec | DSP.Basic |
| d_lp2bp | DSP.Filter.IIR.Transform |
| d_lp2bs | DSP.Filter.IIR.Transform |
| d_lp2hp | DSP.Filter.IIR.Transform |
| d_lp2lp | DSP.Filter.IIR.Transform |