mirror of
https://github.com/CoolProp/CoolProp.git
synced 2026-01-14 16:38:00 -05:00
106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
#ifndef SOLVERS_H
|
|
#define SOLVERS_H
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
#include "Exceptions.h"
|
|
#include "CoolPropTools.h"
|
|
|
|
namespace CoolProp
|
|
{
|
|
|
|
// *****************************************************************************
|
|
// *****************************************************************************
|
|
// SOLVER WRAPPER CLASSES
|
|
// *****************************************************************************
|
|
// *****************************************************************************
|
|
|
|
|
|
class FuncWrapper1D
|
|
{
|
|
public:
|
|
int errcode;
|
|
std::string errstring;
|
|
Dictionary options;
|
|
int iter;
|
|
FuncWrapper1D() : errcode(0), errstring("") {};
|
|
virtual ~FuncWrapper1D(){};
|
|
virtual double call(double) = 0;
|
|
/**
|
|
* /brief A function for checking whether the input is in range;
|
|
*
|
|
* Meant to be implemented by derived classes; return true if input is out of range
|
|
*/
|
|
virtual bool input_not_in_range(double x){ return false; };
|
|
};
|
|
|
|
class FuncWrapper1DWithDeriv : public FuncWrapper1D
|
|
{
|
|
public:
|
|
virtual double deriv(double) = 0;
|
|
};
|
|
|
|
class FuncWrapper1DWithTwoDerivs : public FuncWrapper1DWithDeriv
|
|
{
|
|
public:
|
|
virtual double second_deriv(double) = 0;
|
|
};
|
|
|
|
class FuncWrapper1DWithThreeDerivs : public FuncWrapper1DWithTwoDerivs
|
|
{
|
|
public:
|
|
virtual double third_deriv(double) = 0;
|
|
};
|
|
|
|
class FuncWrapperND
|
|
{
|
|
public:
|
|
int errcode;
|
|
std::string errstring;
|
|
FuncWrapperND() : errcode(0), errstring("") {};
|
|
virtual ~FuncWrapperND(){};
|
|
virtual std::vector<double> call(const std::vector<double>&) = 0;// must be provided
|
|
virtual std::vector<std::vector<double> > Jacobian(const std::vector<double>&);
|
|
};
|
|
|
|
// *****************************************************************************
|
|
// *****************************************************************************
|
|
// SOLVER ROUTINES
|
|
// *****************************************************************************
|
|
// *****************************************************************************
|
|
|
|
// Single-Dimensional solvers, pointer versions
|
|
double Brent(FuncWrapper1D* f, double a, double b, double macheps, double t, int maxiter);
|
|
double Secant(FuncWrapper1D* f, double x0, double dx, double ftol, int maxiter);
|
|
double BoundedSecant(FuncWrapper1D* f, double x0, double xmin, double xmax, double dx, double ftol, int maxiter);
|
|
double Newton(FuncWrapper1DWithDeriv* f, double x0, double ftol, int maxiter);
|
|
double Halley(FuncWrapper1DWithTwoDerivs* f, double x0, double ftol, int maxiter, double xtol_rel = 1e-12);
|
|
double Householder4(FuncWrapper1DWithThreeDerivs* f, double x0, double ftol, int maxiter, double xtol_rel = 1e-12);
|
|
|
|
// Single-Dimensional solvers, refere
|
|
inline double Brent(FuncWrapper1D &f, double a, double b, double macheps, double t, int maxiter){
|
|
return Brent(&f, a, b, macheps, t, maxiter);
|
|
}
|
|
inline double Secant(FuncWrapper1D &f, double x0, double dx, double ftol, int maxiter){
|
|
return Secant(&f, x0, dx, ftol, maxiter);
|
|
}
|
|
inline double BoundedSecant(FuncWrapper1D &f, double x0, double xmin, double xmax, double dx, double ftol, int maxiter){
|
|
return BoundedSecant(&f, x0, xmin, xmax, dx, ftol, maxiter);
|
|
}
|
|
inline double Newton(FuncWrapper1DWithDeriv &f, double x0, double ftol, int maxiter){
|
|
return Newton(&f, x0, ftol, maxiter);
|
|
}
|
|
inline double Halley(FuncWrapper1DWithTwoDerivs &f, double x0, double ftol, int maxiter, double xtol_rel = 1e-12){
|
|
return Halley(&f, x0, ftol, maxiter, xtol_rel);
|
|
}
|
|
inline double Householder4(FuncWrapper1DWithThreeDerivs &f, double x0, double ftol, int maxiter, double xtol_rel = 1e-12){
|
|
return Householder4(&f, x0, ftol, maxiter, xtol_rel);
|
|
}
|
|
|
|
|
|
// Multi-Dimensional solvers
|
|
std::vector<double> NDNewtonRaphson_Jacobian(FuncWrapperND *f, const std::vector<double> &x0, double tol, int maxiter, double w = 1.0);
|
|
|
|
}; /*namespace CoolProp*/
|
|
#endif
|