COMPLEX

typedef struct _COMPLEX 
{ 
   L_DOUBLE r; 
   L_DOUBLE i; 
}L_COMPLEX, * pCOMPLEX;

The COMPLEX structure contains a complex number representing a specific frequency component in Fourier Transform functions.

Member

Description

r

Real part of a complex number.

I

Imaginary part of a complex number.

Comments

This structure is used only by the Fourier Transform functions:

LBitmap::AllocFTArray

LBitmap::DFT

LBitmap::FFT

LBitmap::FreeFTArray

LBitmap::FTDisplay

LBitmap::FrqFilter

LBitmap::FrqFilterMask

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