fusu.h

傅立叶变换和逆变换

// fusu.h: interface for the Cfusu class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_FUSU_H__59D04F5C_1C6B_49A0_9150_5F89459A2B7E__INCLUDED_)
#define AFX_FUSU_H__59D04F5C_1C6B_49A0_9150_5F89459A2B7E__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <math.h>
#define PI 3.1415926535

struct Fs
{
	double a;
	double b;
};

class Cfusu  
{
public:
	void IFFT(Fs* FD,Fs* TD,int r);
	void FFT(Fs* TD,Fs* FD,int r);
	Fs ceng(Fs A,Fs B);
	Fs jian(Fs A,Fs B);
	Fs jia(Fs A,Fs B);

	Cfusu();
	virtual ~Cfusu();

private:
	Fs C;
};

#endif // !defined(AFX_FUSU_H__59D04F5C_1C6B_49A0_9150_5F89459A2B7E__INCLUDED_)