fresnel.h

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#ifndef FRESNEL_H
#define FRESNEL_H
#include <complex>
 
#include "vector.h"
namespace GOAT
{
    namespace maths
    {
#ifndef SENKRECHT
#define SENKRECHT     1    
#define PERPENDICULAR 1    
#endif
 
#ifndef PARALLEL
#define PARALLEL   0       
#endif 
 
        double abs(std::complex<double>  x); 
        double sqr(double x); 

        std::complex<double> Fresnel_trans(int pol, Vector<double> k, Vector<double> n, std::complex<double>  n1, std::complex<double>  n2);
        std::complex<double> Fresnel_reflect(int pol, Vector<double> k, Vector<double> n, std::complex<double>  n1, std::complex<double>  n2);
        std::complex<double>  freflect(int pol, double alpha, std::complex<double>  n1, std::complex<double>  n2);
        std::complex<double>  ftrans(int pol, double alpha, std::complex<double>  n1, std::complex<double>  n2);
    }
}
#endif