Fast FFT and DCT Based on the FFTW Library
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Documentation for package ‘fftw’ version 1.0-8
Help Pages
| DCT | Calculate (inverse) DFT using the FFT method |
| FFT | Calculate (inverse) DFT using the FFT method |
| IDCT | Calculate (inverse) DFT using the FFT method |
| IFFT | Calculate (inverse) DFT using the FFT method |
| planDCT | Create FFTW plan |
| planFFT | Create FFTW plan |