List of Commands/Functions
| Command/function | Purpose |
|---|---|
| stem | Plots the discrete-time sequence |
| decimate | Resamples data at a lower rate after lowpass filtering |
| interp | Resamples data at a higher rate using lowpass interpolation |
| downsample | Downsamples input signal |
| upsample | Upsamples input signal |
| resample | Changes the sampling rate of a signal |
| conv | Convolution and polynomial multiplication |
| fft | Computes discrete Fourier transform |
| ifft | Computes inverse discrete Fourier transform |
| buttord | Computes Butterworth filter order |
| cheb1ord | Computes Chebyshev Type I filter order |
| cheb2ord | Computes Chebyshev Type II filter order |
| ellipord | Computes elliptic filter order |
| butter | Designs Butterworth filter |
| cheby1 | Designs Chebyshev Type I filter |
| cheby2 | Designs Chebyshev Type II filter |
| ellip | Designs elliptic ... |
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