bukin_f6.cpp

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 *   Copyright (C) 2004-2015 The PaGMO development team,                     *
 *   Advanced Concepts Team (ACT), European Space Agency (ESA)               *
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 *   act@esa.int                                                             *
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#include <string>

#include "base.h"
#include "bukin_f6.h"

namespace pagmo { namespace problem {

bukin::bukin():base(2)
{
        // Set bounds.
        set_lb(0,-15.0);
        set_ub(0,-5.0);
        set_lb(1,-3.0);
        set_ub(1,3.0);
}

base_ptr bukin::clone() const
{
        return base_ptr(new bukin(*this));
}

void bukin::objfun_impl(fitness_vector &f, const decision_vector &vx) const
{
        pagmo_assert(f.size() == 1 && vx.size() == 2);
        const double x = vx[0], y = vx[1];
        f[0] = 100 * sqrt(fabs(y - 0.01 * x * x)) + 0.01*fabs(x+10);
}

std::string bukin::get_name() const
{
        return "Bukin f6";
}

}}

BOOST_CLASS_EXPORT_IMPLEMENT(pagmo::problem::bukin)