OptiVec: VF

VF_sinc

VD_sinc

VE_sinc

VFx_sinc

VDx_sinc

VEx_sinc

Function

Sinc function

Syntax C/C++	#include <VFmath.h> int VF_sinc( fVector Y, fVector X, ui size ); int VFx_sinc( fVector Y, fVector X, ui size, float A, float B, float C );
C++ VecObj	#include <OptiVec.h> int vector<T>::sinc( const vector<T>& X ); int vector<T>::x_sinc( const vector<T>& X, const T& A, const T& B, const T& C );
Pascal/Delphi	uses VFmath; function VF_sinc( Y, X:fVector; size:UInt ): IntBool; function VFx_sinc( Y, X:fVector; size:UInt; A, B, C:Single ): IntBool;

Description

normal versions: Y_i = sinc( X_i ) = sin( X_i ) / X_i
expanded versions: Y_i = C * sinc( A*X_i+B )
The sinc function for an argument of 0.0 is defined as 1.0. The sinc function is the Fourier transform of a square pulse and is used, for example, to describe the diffraction pattern of a slit.

Error handling

These functions should be error-proof.

Return value

always FALSE (0).