matrix_svd.c File Reference

#include <volume_io/internal_volume_io.h>
#include <bicpl/numerical.h>

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Defines
#define	MAX_ITERATIONS   30
#define	PYTHAG(a, b)
#define	TAKE_SIGN(a, b)   ((b) >= 0.0 ? fabs(a) : -fabs(a))
Functions
public BOOLEAN	singular_value_decomposition (int m, int n, Real **a, Real w[], Real **v)

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Define Documentation

#define MAX_ITERATIONS   30

Definition at line 22 of file matrix_svd.c. Referenced by singular_value_decomposition().

#define PYTHAG (  a, b   )

Value: ((at=fabs(a)) > (bt=fabs(b)) ? \ (ct=bt/at,at*sqrt(1.0+ct*ct)) : (bt ? (ct=at/bt,bt*sqrt(1.0+ct*ct)): 0.0)) Definition at line 24 of file matrix_svd.c. Referenced by singular_value_decomposition().

#define TAKE_SIGN (  a, b   )     ((b) >= 0.0 ? fabs(a) : -fabs(a))

Definition at line 27 of file matrix_svd.c. Referenced by singular_value_decomposition().

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Function Documentation

public BOOLEAN singular_value_decomposition (  int  m, int  n, Real **  a, Real  w[], Real **  v )

Definition at line 46 of file matrix_svd.c. References FALSE, MAX_ITERATIONS, PYTHAG, TAKE_SIGN, TRUE, and y. Referenced by procrustes().

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