#include <iostream>
#include <complex>
#include <boost/lambda/if.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>


using namespace boost::lambda;


double exp1(double _d)
{	return exp(_d);
}

template<typename T>
std::complex<T> exp1(const std::complex<T> &_r)
{	return std::exp(_r);
}


template<typename X>
struct EXP 
{	typedef X result_type;
	X operator()(const X &_r) const
	{	return exp(_r);
	} 
};



int main(int argc, char **argv)
{
	std::cout << (bind(EXP<double>(), _1*0.5) + 2.0*bind(EXP<double>(), _1))(atof(argv[1])) << "\n";
	std::cout << exp(0.5*atof(argv[1])) + 2.0*exp(atof(argv[1])) << "\n";
	std::cout << (bind(exp1, _1*0.5) + 2.0*bind(exp1, _1))(atof(argv[1])) << "\n";
	//std::cout << (bind(exp1, _1*0.5) + 2.0*bind(exp1, _1))(std::complex<double>(atof(argv[1]))) << "\n";
	std::cout << (bind(EXP<std::complex<double> >(), _1*0.5) + 2.0*bind(EXP<std::complex<double> >(), _1))(std::complex<double>(atof(argv[1]), 0)) << "\n";
	return 0;
}