fourier.h File Reference

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Functions
void	four1 (double data[], unsigned long nn, int isign)
void	twofft (double data1[], double data2[], double fft1[], double fft2[], unsigned long n)
void	realft (double data[], unsigned long n, int isign)
void	convlv (double data[], unsigned long n, double respns[], unsigned long m, int isign, double ans[])
void	correl (double data1[], double data2[], unsigned long n, double ans[])
void	spctrm (double data[], double p[], int m, int k)

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Function Documentation

void convlv	(	double	data[],
		unsigned long	n,
		double	respns[],
		unsigned long	m,
		int	isign,
		double	ans[]
	)

References i, realft(), SQR, and twofft().

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void correl	(	double	data1[],
		double	data2[],
		unsigned long	n,
		double	ans[]
	)

References data, i, realft(), and twofft().

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void four1	(	double	data[],
		unsigned long	nn,
		int	isign
	)

References i, m, n, and SWAP.

Referenced by realft(), spctrm(), and twofft().

void realft	(	double	data[],
		unsigned long	n,
		int	isign
	)

References four1(), i, i1, and i2.

Referenced by convlv(), and correl().

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void spctrm	(	double	data[],
		double	p[],
		int	m,
		int	k
	)

References four1(), SQR, and WINDOW.

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void twofft	(	double	data1[],
		double	data2[],
		double	fft1[],
		double	fft2[],
		unsigned long	n
	)

References data, and four1().

Referenced by convlv(), and correl().

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