Chapter Introduction |
Module 7.1: nag_fft - Discrete Fourier Transforms |
nag_fft_1d |
Single or multiple 1-d complex discrete Fourier transform, or its inverse |
nag_fft_1d_real |
Single or multiple 1-d real or Hermitian discrete Fourier transform, or its inverse |
nag_fft_1d_basic |
Single or multiple 1-d real, Hermitian or complex discrete Fourier transform, which is
overwritten on the input data |
nag_fft_2d |
2-d complex discrete Fourier transform, or its inverse |
nag_fft_2d_basic |
2-d complex discrete Fourier transform, which is overwritten on the input data |
nag_fft_3d |
3-d complex discrete Fourier transform, or its inverse |
nag_fft_3d_basic |
3-d complex discrete Fourier transform, which is overwritten on the input data |
nag_fft_trig |
Trigonometric coefficients for computing
discrete Fourier transforms |
nag_herm_to_cmplx |
Convert Hermitian sequences to general
complex sequences |
nag_cmplx_to_herm |
Convert Hermitian complex sequences to
their compact real form |
nag_conj_herm |
Complex conjugates of Hermitian sequences |
Examples
|
Module 7.2: nag_sym_fft - Symmetric Discrete Fourier Transforms |
nag_fft_sin |
Single or multiple 1-d discrete Fourier sine transform |
nag_fft_cos |
Single or multiple 1-d discrete Fourier cosine transform |
nag_fft_qtr_sin |
Single or multiple 1-d discrete
quarter-wave Fourier sine transform, or its inverse |
nag_fft_qtr_cos |
Single or multiple 1-d discrete
quarter-wave Fourier cosine transform, or its inverse |
Examples
|
Module 7.3: nag_conv - Convolution and Correlation |
nag_fft_conv |
Computes the convolution or correlation of two
real or complex vectors |
Examples
|