rk.cpp File Reference

#include <stdlib.h>
#include <stddef.h>
#include <math.h>
#include "Algorithms/bet/BetError.h"
#include "Algorithms/bet/math/rk.h"

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Macros
#define	FMAX(a, b)
#define	SAFETY   0.9
#define	PGROW   -0.2
#define	PSHRNK   -0.25
#define	ERRCON   1.89e-4
#define	MAXSTP   10000
#define	TINY   1.0e-30
#define	SIGN(a, b)   ((b) >= 0.0 ? fabs(a) : -fabs(a))

Functions
void	rkck (double y[], double dydx[], int n, double x, double h, double yout[], double yerr[], void(*derivs)(double, double[], double[]))
void	rk4 (double y[], int n, double x, double h, void(*derivs)(double, double[], double[]))
int	odeint (double ystart[], int nvar, double x1, double x2, double eps, double h1, double hmin, int *nok, int *nbad, void(*derivs)(double, double[], double[]))
void	rkActivateBuffer (int max)
void	rkPrintBuffer (FILE *f)

Macro Definition Documentation

#define ERRCON   1.89e-4

Definition at line 175 of file rk.cpp.

#define FMAX	(		a,
			b
	)

Value:

(maxarg1=(a),maxarg2=(b),(maxarg1) > (maxarg2) ?\
        (maxarg1) : (maxarg2))

Definition at line 27 of file rk.cpp.

#define MAXSTP   10000

Definition at line 295 of file rk.cpp.

Referenced by odeint().

#define PGROW   -0.2

Definition at line 173 of file rk.cpp.

#define PSHRNK   -0.25

Definition at line 174 of file rk.cpp.

#define SAFETY   0.9

Definition at line 172 of file rk.cpp.

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

Definition at line 298 of file rk.cpp.

Referenced by odeint().

#define TINY   1.0e-30

Definition at line 296 of file rk.cpp.

Referenced by ludcmp(), and odeint().

Function Documentation

int odeint	(	double	ystart[],
		int	nvar,
		double	x1,
		double	x2,
		double	eps,
		double	h1,
		double	hmin,
		int *	nok,
		int *	nbad,
		void(*)(double, double[], double[])	derivs
	)

Definition at line 323 of file rk.cpp.

References fabs(), MAXSTP, SIGN, TINY, and writeBetError().

Referenced by EnvelopeBunch::timeStep().

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void rk4	(	double	y[],
		int	n,
		double	x,
		double	h,
		void(*)(double, double[], double[])	derivs
	)

Definition at line 263 of file rk.cpp.

References Hypervolume::n.

Referenced by EnvelopeBunch::timeStep().

void rkActivateBuffer

(

int

max

)

Definition at line 395 of file rk.cpp.

References max().

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void rkck	(	double	y[],
		double	dydx[],
		int	n,
		double	x,
		double	h,
		double	yout[],
		double	yerr[],
		void(*)(double, double[], double[])	derivs
	)

Definition at line 115 of file rk.cpp.

References Hypervolume::n.

void rkPrintBuffer

(

FILE *

f

)

Definition at line 408 of file rk.cpp.