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70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
/*
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[auto_generated]
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integrate.cpp
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[begin_description]
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tba.
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[end_description]
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Copyright 2009-2012 Karsten Ahnert
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Copyright 2009-2012 Mario Mulansky
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE_1_0.txt or
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copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/config.hpp>
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#ifdef BOOST_MSVC
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#pragma warning(disable:4996)
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#endif
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#define BOOST_TEST_MODULE odeint_eigen_integrate
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#include <boost/numeric/odeint/integrate/integrate.hpp>
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#include <boost/numeric/odeint/external/eigen/eigen.hpp>
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#include <boost/test/unit_test.hpp>
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#include "dummy_odes.hpp"
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using namespace boost::unit_test;
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using namespace boost::numeric::odeint;
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BOOST_AUTO_TEST_SUITE( eigen_integrate )
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BOOST_AUTO_TEST_CASE( test_const_sys )
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{
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typedef Eigen::Matrix< double , 1 , 1 > state_type;
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state_type x;
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x[0] = 10.0;
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double t_start = 0.0 , t_end = 1.0 , dt = 0.1;
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integrate< double >( constant_system_functor_standard() , x , t_start , t_end , dt );
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BOOST_CHECK_CLOSE( x[0] , 11.0 , 1.0e-13 );
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}
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BOOST_AUTO_TEST_CASE( test_lorenz )
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{
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typedef Eigen::Matrix< double , 3 , 1 > state_type;
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state_type x;
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x[0] = 10.0;
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x[1] = 10.0;
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x[2] = 10.0;
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double t_start = 0.0 , t_end = 1000.0 , dt = 0.1;
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integrate< double >( lorenz() , x , t_start , t_end , dt );
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std::vector< double > x2( 3 );
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x2[0] = 10.0;
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x2[1] = 10.0;
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x2[2] = 10.0;
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integrate( lorenz() , x2 , t_start , t_end , dt );
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BOOST_CHECK_CLOSE( x[0] , x2[0] , 1.0e-13 );
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BOOST_CHECK_CLOSE( x[1] , x2[1] , 1.0e-13 );
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BOOST_CHECK_CLOSE( x[2] , x2[2] , 1.0e-13 );
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}
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BOOST_AUTO_TEST_SUITE_END()
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