approx_sqrt.c File Reference

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

Include dependency graph for approx_sqrt.c:

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Defines
#define	USE_FAST_APPROX
#define	FAST_SQRT   fast_approx_sqrt
#define	MIN_SQRT_ARG   1.0
#define	MAX_SQRT_ARG   1000.0
#define	N_SQRT_PRECOMPUTE   30000
Functions
public double	fast_approx_sqrt (double y)
public Real	fast_approx_distance_between_points (Point *p1, Point *p2)

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Define Documentation

#define FAST_SQRT   fast_approx_sqrt

Definition at line 8 of file approx_sqrt.c. Referenced by fast_approx_distance_between_points().

#define MAX_SQRT_ARG   1000.0

Definition at line 14 of file approx_sqrt.c. Referenced by fast_approx_sqrt().

#define MIN_SQRT_ARG   1.0

Definition at line 13 of file approx_sqrt.c.

#define N_SQRT_PRECOMPUTE   30000

Definition at line 15 of file approx_sqrt.c. Referenced by fast_approx_sqrt().

#define USE_FAST_APPROX

Definition at line 5 of file approx_sqrt.c.

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Function Documentation

public Real fast_approx_distance_between_points (  Point *  p1, Point *  p2 )

Definition at line 57 of file approx_sqrt.c. References FAST_SQRT.

public double fast_approx_sqrt (  double  y  )

Definition at line 17 of file approx_sqrt.c. References FALSE, lookup(), MAX_SQRT_ARG, N_SQRT_PRECOMPUTE, TRUE, and y.

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