NAG C Library Chapter Contents

c06 – Fourier Transforms


c06 Chapter Introduction – a description of the Chapter and an overview of the algorithms available

Function
Name
Mark of
Introduction

Purpose
c06dcc
Example Text
Example Data
23 nag_sum_cheby_series
Sum of a Chebyshev series at a set of points
c06fkc
Example Text
Example Data
24 nag_sum_convcorr_real
Circular convolution or correlation of two real vectors, no restrictions on n
c06fpc
Example Text
Example Data
1 nag_fft_multiple_real
Multiple one-dimensional real discrete Fourier transforms
c06fqc
Example Text
Example Data
1 nag_fft_multiple_hermitian
Multiple one-dimensional Hermitian discrete Fourier transforms
c06gqc
Example Text
Example Data
1 nag_multiple_conjugate_hermitian
Complex conjugate of multiple Hermitian sequences
c06gsc
Example Text
Example Data
1 nag_multiple_hermitian_to_complex
Convert Hermitian sequences to general complex sequences
c06gzc
Example Text
Example Data
1 nag_fft_init_trig
Initialization function for other c06 functions
c06pac
Example Text
Example Data
24 nag_sum_fft_realherm_1d
Single one-dimensional real and Hermitian complex discrete Fourier transform, using complex storage format for Hermitian sequences
c06pcc
Example Text
Example Data
24 nag_sum_fft_complex_1d
Single one-dimensional complex discrete Fourier transform, complex data type
c06pfc
Example Text
Example Data
7 nag_fft_multid_single
One-dimensional complex discrete Fourier transform of multidimensional data (using complex data type)
c06pjc
Example Text
Example Data
7 nag_fft_multid_full
Multidimensional complex discrete Fourier transform of multidimensional data (using complex data type)
c06psc
Example Text
Example Data
24 nag_sum_fft_complex_1d_multi
Multiple one-dimensional complex discrete Fourier transforms, complex data type
c06puc
Example Text
Example Data
24 nag_sum_fft_complex_2d
Two-dimensional complex discrete Fourier transform, complex data type
c06pvc
Example Text
Example Data
24 nag_sum_fft_real_2d
Two-dimensional real-to-complex discrete Fourier transform
c06pwc 24 nag_sum_fft_hermitian_2d
Two-dimensional complex-to-real discrete Fourier transform
c06pxc
Example Text
Example Data
7 nag_fft_3d
Three-dimensional complex discrete Fourier transform, complex data type
c06pyc
Example Text
Example Data
24 nag_sum_fft_real_3d
Three-dimensional real-to-complex discrete Fourier transform
c06pzc 24 nag_sum_fft_hermitian_3d
Three-dimensional complex-to-real discrete Fourier transform
c06rec
Example Text
Example Data
24 nag_sum_fft_sine
Multiple discrete sine transforms, simple
c06rfc
Example Text
Example Data
24 nag_sum_fft_cosine
Multiple discrete cosine transforms, simple
c06rgc
Example Text
Example Data
24 nag_sum_fft_qtrsine
Multiple discrete quarter-wave sine transforms, simple
c06rhc
Example Text
Example Data
24 nag_sum_fft_qtrcosine
Multiple discrete quarter-wave cosine transforms, simple
c06sac
Example Text
Example Data
26.1 nag_sum_fast_gauss
Multidimensional fast Gauss transform