| /* |
| * lorenz.hpp |
| * |
| * Copyright 2011 Mario Mulansky |
| * Copyright 2012 Karsten Ahnert |
| * |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE_1_0.txt or |
| * copy at http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| |
| |
| #ifndef LORENZ_HPP_ |
| #define LORENZ_HPP_ |
| |
| #include <boost/array.hpp> |
| |
| struct lorenz |
| { |
| template< class state_type > |
| void inline operator()( const state_type &x , state_type &dxdt , const double t ) const |
| { |
| const double sigma = 10.0; |
| const double R = 28.0; |
| const double b = 8.0 / 3.0; |
| dxdt[0] = sigma * ( x[1] - x[0] ); |
| dxdt[1] = R * x[0] - x[1] - x[0] * x[2]; |
| dxdt[2] = x[0]*x[1] - b * x[2]; |
| } |
| }; |
| |
| |
| #endif /* LORENZ_HPP_ */ |
