FT.cpp File Reference

An implementation for a collection of Fourier methods. More...

#include <DenseVector.h>
#include <TwoD_Node_Mesh.h>
#include <Types.h>
#include <OneD_Node_Mesh.h>
#include <FT.h>

Go to the source code of this file.

Namespaces
namespace	CppNoddy
	A collection of OO numerical routines aimed at simple (typical) applied problems in continuum mechanics.
namespace	CppNoddy::FT
	Some algorithms associated with Fourier transforms of CppNoddy container data.

Functions
OneD_Node_Mesh< D_complex >	CppNoddy::FT::shift (const OneD_Node_Mesh< D_complex > &ft)
	Shift the frequency spectrum obtained from dft to give positive and negative freq. More...
OneD_Node_Mesh< D_complex >	CppNoddy::FT::ishift (const OneD_Node_Mesh< D_complex > &ft)
	Invert the shif operation to recover a spectrum in the form that is expected by the idft routine. More...
OneD_Node_Mesh< D_complex >	CppNoddy::FT::dft_with_shift (const OneD_Node_Mesh< D_complex > &f)
	A wrapper that calls the 'dft' method above followed by the 'shift' method. More...
TwoD_Node_Mesh< D_complex >	CppNoddy::FT::dft_with_shift (const TwoD_Node_Mesh< D_complex > &f)
OneD_Node_Mesh< D_complex >	CppNoddy::FT::idft_with_ishift (const OneD_Node_Mesh< D_complex > &ft, double origin=0)
	A wrapper that calls the 'ishift' method above followed by the 'idft' method. More...
TwoD_Node_Mesh< D_complex >	CppNoddy::FT::idft_with_ishift (const TwoD_Node_Mesh< D_complex > &ft, double origin=0)
OneD_Node_Mesh< D_complex >	CppNoddy::FT::dft (const OneD_Node_Mesh< D_complex > &f)
	(Slow) DFT of the real data (x_i,f_i), i = 0, ... N-1; N must be EVEN. More...
OneD_Node_Mesh< D_complex >	CppNoddy::FT::idft (const OneD_Node_Mesh< D_complex > &ft, double origin=0)
	(Slow) Inverse DFT of the complex data (omega_i,F_i), i = 0,...,N-1; N must be EVEN. More...

Detailed Description

An implementation for a collection of Fourier methods.

Definition in file FT.cpp.