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/**
\file nfw.hpp
\brief NFW model
\author Junhua Gu
*/
#ifndef NFW_MODEL_H_
#define NFW_MODEL_H_
#define OPT_HEADER
#include <core/fitter.hpp>
#include <cmath>
#include <misc/optvec.hpp>
namespace opt_utilities
{
template <typename T>
class nfw
:public model<optvec<T>,optvec<T>,optvec<T>,std::string>
{
private:
nfw* do_clone()const
{
return new nfw<T>(*this);
}
const char* do_get_type_name()const
{
return "nfw mass profile";
}
public:
nfw()
{
this->push_param_info(param_info<optvec<T> >("rho0",1));
this->push_param_info(param_info<optvec<T> >("rs",1));
}
optvec<T> do_eval(const optvec<T>& x,const optvec<T>& param)
{
T rho0=get_element(param,0);
T rs=get_element(param,1);
return rho0/(x/rs*(x/rs+T(1))*(x/rs+T(1)));
}
private:
std::string do_get_information()const
{
#ifdef WITH_OPT_DOC
#include <model_doc/nfw.info>
#endif
return "";
}
};
}
#endif
//EOF
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