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C06 (Sum)
Fourier Transforms

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C06 (Sum) Chapter Introduction – A description of the Chapter and an overview of the algorithms available.

Function
Mark of
Introduction

Purpose
c06dcc 23 nag_sum_chebyshev
Sum of a Chebyshev series at a set of points
c06fkc 24 nag_sum_convcorr_real
Circular convolution or correlation of two real vectors, no restrictions on n
c06pac 24 nag_sum_fft_realherm_1d
Single one-dimensional real and Hermitian complex discrete Fourier transform, using complex storage format for Hermitian sequences
c06pcc 24 nag_sum_fft_complex_1d
Single one-dimensional complex discrete Fourier transform, complex data type
c06pfc 7 nag_sum_fft_complex_multid_1d
One-dimensional complex discrete Fourier transform of multidimensional data (using complex data type)
c06pjc 7 nag_sum_fft_complex_multid
Multidimensional complex discrete Fourier transform of multidimensional data (using complex data type)
c06ppc 27 nag_sum_fft_realherm_1d_multi_row
Multiple one-dimensional real and Hermitian complex discrete Fourier transforms, using row ordered complex storage format for Hermitian sequences
c06pqc 27 nag_sum_fft_realherm_1d_multi_col
Multiple one-dimensional real and Hermitian complex discrete Fourier transforms, using column ordered complex storage format for Hermitian sequences
c06psc 24 nag_sum_fft_complex_1d_multi_col
Multiple one-dimensional complex discrete Fourier transforms, complex data type
c06puc 24 nag_sum_fft_complex_2d
Two-dimensional complex discrete Fourier transform, complex data type
c06pvc 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 7 nag_sum_fft_complex_3d
Three-dimensional complex discrete Fourier transform, complex data type
c06pyc 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 24 nag_sum_fft_sine
Multiple discrete sine transforms, simple
c06rfc 24 nag_sum_fft_cosine
Multiple discrete cosine transforms, simple
c06rgc 24 nag_sum_fft_qtrsine
Multiple discrete quarter-wave sine transforms, simple
c06rhc 24 nag_sum_fft_qtrcosine
Multiple discrete quarter-wave cosine transforms, simple
c06sac 26.1 nag_sum_fast_gauss
Multidimensional fast Gauss transform