boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > Class Template Reference

The Runge-Kutta Cash-Karp method implemented without the generic Runge-Kutta algorithm. More...

#include <runge_kutta_cash_karp54_classic.hpp>

Inheritance diagram for boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >:

Collaboration diagram for boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >:

Public Types
typedef explicit_error_stepper_base < runge_kutta_cash_karp54_classic < State, Value, Deriv, Time, Algebra, Operations, Resizer > , 5, 5, 4, State, Value, Deriv, Time, Algebra, Operations, Resizer >	stepper_base_type
typedef stepper_base_type::state_type	state_type
typedef stepper_base_type::value_type	value_type
typedef stepper_base_type::deriv_type	deriv_type
typedef stepper_base_type::time_type	time_type
typedef stepper_base_type::algebra_type	algebra_type
typedef stepper_base_type::operations_type	operations_type
typedef stepper_base_type::resizer_type	resizer_type
typedef stepper_base_type::wrapped_state_type	wrapped_state_type
typedef stepper_base_type::wrapped_deriv_type	wrapped_deriv_type
typedef stepper_base_type::stepper_type	stepper_type
typedef algebra_stepper_base < Algebra, Operations >	algebra_stepper_base_type
typedef explicit_error_stepper_tag	stepper_category
typedef explicit_error_stepper_base < runge_kutta_cash_karp54_classic < State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >	internal_stepper_base_type
typedef unsigned short	order_type

Public Member Functions
	runge_kutta_cash_karp54_classic (const algebra_type &algebra=algebra_type())
	Constructs the runge_kutta_cash_karp54_classic class. More...
template<class System , class StateIn , class DerivIn , class StateOut , class Err >
void	do_step_impl (System system, const StateIn &in, const DerivIn &dxdt, time_type t, StateOut &out, time_type dt, Err &xerr)
	This method performs one step. More...
template<class System , class StateIn , class DerivIn , class StateOut >
void	do_step_impl (System system, const StateIn &in, const DerivIn &dxdt, time_type t, StateOut &out, time_type dt)
	This method performs one step. More...
template<class StateIn >
void	adjust_size (const StateIn &x)
	Adjust the size of all temporaries in the stepper manually. More...
order_type	order (void) const
order_type	stepper_order (void) const
order_type	error_order (void) const
void	do_step (System system, StateInOut &x, time_type t, time_type dt)
	This method performs one step. More...
void	do_step (System system, const StateInOut &x, time_type t, time_type dt)
	Second version to solve the forwarding problem, can be called with Boost.Range as StateInOut. More...
boost::disable_if < boost::is_same< DerivIn, time_type >, void >::type	do_step (System system, StateInOut &x, const DerivIn &dxdt, time_type t, time_type dt)
	The method performs one step with the stepper passed by Stepper. More...
boost::disable_if < boost::is_same< StateIn, time_type >, void >::type	do_step (System system, const StateIn &in, time_type t, StateOut &out, time_type dt)
	The method performs one step with the stepper passed by Stepper. More...
boost::disable_if < boost::is_same< DerivIn, time_type >, void >::type	do_step (System system, const StateIn &in, const DerivIn &dxdt, time_type t, StateOut &out, time_type dt)
	The method performs one step with the stepper passed by Stepper. More...
void	do_step (System system, StateInOut &x, time_type t, time_type dt, Err &xerr)
	The method performs one step with the stepper passed by Stepper and estimates the error. More...
void	do_step (System system, const StateInOut &x, time_type t, time_type dt, Err &xerr)
	Second version to solve the forwarding problem, can be called with Boost.Range as StateInOut. More...
boost::disable_if < boost::is_same< DerivIn, time_type >, void >::type	do_step (System system, StateInOut &x, const DerivIn &dxdt, time_type t, time_type dt, Err &xerr)
	The method performs one step with the stepper passed by Stepper. More...
void	do_step (System system, const StateIn &in, time_type t, StateOut &out, time_type dt, Err &xerr)
	The method performs one step with the stepper passed by Stepper. More...
void	do_step (System system, const StateIn &in, const DerivIn &dxdt, time_type t, StateOut &out, time_type dt, Err &xerr)
	The method performs one step with the stepper passed by Stepper. More...
algebra_type &	algebra ()
const algebra_type &	algebra () const

Static Public Attributes
static const order_type	order_value
static const order_type	stepper_order_value
static const order_type	error_order_value

Protected Attributes
wrapped_deriv_type	m_dxdt
algebra_type	m_algebra

Detailed Description

template<class State, class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>
class boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >

The Runge-Kutta Cash-Karp method implemented without the generic Runge-Kutta algorithm.

The Runge-Kutta Cash-Karp method is one of the standard methods for solving ordinary differential equations, see en.wikipedia.org/wiki/Cash-Karp_method. The method is explicit and fulfills the Error Stepper concept. Step size control is provided but continuous output is not available for this method.

This class derives from explicit_error_stepper_base and inherits its interface via CRTP (current recurring template pattern). This class implements the method directly, hence the generic Runge-Kutta algorithm is not used.

Template Parameters

State	The state type.
Value	The value type.
Deriv	The type representing the time derivative of the state.
Time	The time representing the independent variable - the time.
Algebra	The algebra type.
Operations	The operations type.
Resizer	The resizer policy type.

Member Typedef Documentation

typedef algebra_stepper_base< Algebra , Operations > boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::algebra_stepper_base_type

inherited

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::algebra_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::algebra_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::deriv_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::deriv_type

typedef explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order , StepperOrder , ErrorOrder , State , Value , Deriv , Time , Algebra , Operations , Resizer > boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::internal_stepper_base_type

inherited

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::operations_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::operations_type

typedef unsigned short boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::order_type

inherited

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::resizer_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::resizer_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::state_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::state_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State , Value , Deriv , Time , Algebra , Operations , Resizer > , 5 , 5 , 4 , State , Value , Deriv , Time , Algebra , Operations , Resizer > boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::stepper_base_type

typedef explicit_error_stepper_tag boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::stepper_category

inherited

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::stepper_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::stepper_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::time_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::time_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::value_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::value_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::wrapped_deriv_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::wrapped_deriv_type

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

typedef stepper_base_type::wrapped_state_type boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::wrapped_state_type

Constructor & Destructor Documentation

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::runge_kutta_cash_karp54_classic ( const algebra_type &  algebra = algebra_type() )

inline

Constructs the runge_kutta_cash_karp54_classic class.

This constructor can be used as a default constructor if the algebra has a default constructor.

Parameters

algebra

A copy of algebra is made and stored inside explicit_stepper_base.

Member Function Documentation

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

template<class StateIn >

void boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::adjust_size ( const StateIn &  x )

inline

Adjust the size of all temporaries in the stepper manually.

Parameters

x	A state from which the size of the temporaries to be resized is deduced.

References boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >, 5, 5, 4, State, Value, Deriv, Time, Algebra, Operations, Resizer >::adjust_size().

template<class Algebra, class Operations>

algebra_type & boost::numeric::odeint::algebra_stepper_base< Algebra, Operations >::algebra ( )

inlineinherited

Returns

A reference to the algebra which is held by this class.

template<class Algebra, class Operations>

const algebra_type & boost::numeric::odeint::algebra_stepper_base< Algebra, Operations >::algebra ( ) const

inlineinherited

Returns

A const reference to the algebra which is held by this class.

void boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, StateInOut &  x, time_type  t, time_type  dt  )

inlineinherited

This method performs one step.

It transforms the result in-place.

Parameters

system	The system function to solve, hence the r.h.s. of the ordinary differential equation. It must fulfill the Simple System concept.
x	The state of the ODE which should be solved. After calling do_step the result is updated in x.
t	The value of the time, at which the step should be performed.
dt	The step size.

void boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, const StateInOut &  x, time_type  t, time_type  dt  )

inlineinherited

Second version to solve the forwarding problem, can be called with Boost.Range as StateInOut.

boost::disable_if< boost::is_same< DerivIn , time_type > , void >::type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, StateInOut &  x, const DerivIn &  dxdt, time_type  t, time_type  dt  )

inlineinherited

The method performs one step with the stepper passed by Stepper.

Additionally to the other method the derivative of x is also passed to this method. It is supposed to be used in the following way:

sys( x , dxdt , t );
stepper.do_step( sys , x , dxdt , t , dt );

The result is updated in place in x. This method is disabled if Time and Deriv are of the same type. In this case the method could not be distinguished from other do_step versions.

Note

This method does not solve the forwarding problem.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
x	The state of the ODE which should be solved. After calling do_step the result is updated in x.
dxdt	The derivative of x at t.
t	The value of the time, at which the step should be performed.
dt	The step size.

boost::disable_if< boost::is_same< StateIn , time_type > , void >::type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, const StateIn &  in, time_type  t, StateOut &  out, time_type  dt  )

inlineinherited

The method performs one step with the stepper passed by Stepper.

The state of the ODE is updated out-of-place. This method is disabled if StateIn and Time are the same type. In this case the method can not be distinguished from other do_step variants.

Note

This method does not solve the forwarding problem.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
in	The state of the ODE which should be solved. in is not modified in this method
t	The value of the time, at which the step should be performed.
out	The result of the step is written in out.
dt	The step size.

References boost::numeric::odeint::detail::_1, boost::bind(), boost::numeric::odeint::explicit_error_stepper_base< Stepper, Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::m_dxdt, boost::numeric::odeint::state_wrapper< V, Enabler >::m_v, boost::ref(), template, and boost::detail::type.

boost::disable_if< boost::is_same< DerivIn , time_type > , void >::type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, const StateIn &  in, const DerivIn &  dxdt, time_type  t, StateOut &  out, time_type  dt  )

inlineinherited

The method performs one step with the stepper passed by Stepper.

The state of the ODE is updated out-of-place. Furthermore, the derivative of x at t is passed to the stepper. It is supposed to be used in the following way:

sys( in , dxdt , t );
stepper.do_step( sys , in , dxdt , t , out , dt );

This method is disabled if DerivIn and Time are of same type.

Note

This method does not solve the forwarding problem.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
in	The state of the ODE which should be solved. in is not modified in this method
dxdt	The derivative of x at t.
t	The value of the time, at which the step should be performed.
out	The result of the step is written in out.
dt	The step size.

void boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, StateInOut &  x, time_type  t, time_type  dt, Err &  xerr  )

inlineinherited

The method performs one step with the stepper passed by Stepper and estimates the error.

The state of the ODE is updated in-place.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
x	The state of the ODE which should be solved. x is updated by this method.
t	The value of the time, at which the step should be performed.
dt	The step size.
xerr	The estimation of the error is stored in xerr.

void boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, const StateInOut &  x, time_type  t, time_type  dt, Err &  xerr  )

inlineinherited

Second version to solve the forwarding problem, can be called with Boost.Range as StateInOut.

boost::disable_if< boost::is_same< DerivIn , time_type > , void >::type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, StateInOut &  x, const DerivIn &  dxdt, time_type  t, time_type  dt, Err &  xerr  )

inlineinherited

The method performs one step with the stepper passed by Stepper.

Additionally to the other method the derivative of x is also passed to this method. It is supposed to be used in the following way:

sys( x , dxdt , t );
stepper.do_step( sys , x , dxdt , t , dt , xerr );

The result is updated in place in x. This method is disabled if Time and DerivIn are of the same type. In this case the method could not be distinguished from other do_step versions.

Note

This method does not solve the forwarding problem.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
x	The state of the ODE which should be solved. After calling do_step the result is updated in x.
dxdt	The derivative of x at t.
t	The value of the time, at which the step should be performed.
dt	The step size.
xerr	The error estimate is stored in xerr.

void boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, const StateIn &  in, time_type  t, StateOut &  out, time_type  dt, Err &  xerr  )

inlineinherited

The method performs one step with the stepper passed by Stepper.

The state of the ODE is updated out-of-place. Furthermore, the error is estimated.

Note

This method does not solve the forwarding problem.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
in	The state of the ODE which should be solved. in is not modified in this method
t	The value of the time, at which the step should be performed.
out	The result of the step is written in out.
dt	The step size.
xerr	The error estimate.

References boost::numeric::odeint::detail::_1, boost::bind(), boost::numeric::odeint::explicit_error_stepper_base< Stepper, Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::m_dxdt, boost::numeric::odeint::state_wrapper< V, Enabler >::m_v, boost::ref(), template, and boost::detail::type.

void boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step ( System  system, const StateIn &  in, const DerivIn &  dxdt, time_type  t, StateOut &  out, time_type  dt, Err &  xerr  )

inlineinherited

The method performs one step with the stepper passed by Stepper.

The state of the ODE is updated out-of-place. Furthermore, the derivative of x at t is passed to the stepper and the error is estimated. It is supposed to be used in the following way:

sys( in , dxdt , t );
stepper.do_step( sys , in , dxdt , t , out , dt );

This method is disabled if DerivIn and Time are of same type.

Note

This method does not solve the forwarding problem.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
in	The state of the ODE which should be solved. in is not modified in this method
dxdt	The derivative of x at t.
t	The value of the time, at which the step should be performed.
out	The result of the step is written in out.
dt	The step size.
xerr	The error estimate.

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

template<class System , class StateIn , class DerivIn , class StateOut , class Err >

boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl ( System  system, const StateIn &  in, const DerivIn &  dxdt, time_type  t, StateOut &  out, time_type  dt, Err &  xerr  )

inline

This method performs one step.

The derivative dxdt of in at the time t is passed to the method.

The result is updated out-of-place, hence the input is in in and the output in out. Futhermore, an estimation of the error is stored in xerr. Access to this step functionality is provided by explicit_error_stepper_base and do_step_impl should not be called directly.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
in	The state of the ODE which should be solved. in is not modified in this method
dxdt	The derivative of x at t.
t	The value of the time, at which the step should be performed.
out	The result of the step is written in out.
dt	The step size.
xerr	The result of the error estimation is written in xerr.

References boost::numeric::odeint::algebra_stepper_base< Algebra, Operations >::m_algebra, boost::numeric::odeint::state_wrapper< V, Enabler >::m_v, and template.

template<class State , class Value = double, class Deriv = State, class Time = Value, class Algebra = typename algebra_dispatcher< State >::algebra_type, class Operations = typename operations_dispatcher< State >::operations_type, class Resizer = initially_resizer>

template<class System , class StateIn , class DerivIn , class StateOut >

boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl ( System  system, const StateIn &  in, const DerivIn &  dxdt, time_type  t, StateOut &  out, time_type  dt  )

inline

This method performs one step.

The derivative dxdt of in at the time t is passed to the method. The result is updated out-of-place, hence the input is in in and the output in out. Access to this step functionality is provided by explicit_error_stepper_base and do_step_impl should not be called directly.

Parameters

system	The system function to solve, hence the r.h.s. of the ODE. It must fulfill the Simple System concept.
in	The state of the ODE which should be solved. in is not modified in this method
dxdt	The derivative of x at t.
t	The value of the time, at which the step should be performed.
out	The result of the step is written in out.
dt	The step size.

References boost::numeric::odeint::detail::_1, boost::xpressive::a2, boost::xpressive::a3, boost::xpressive::a4, boost::xpressive::a5, boost::xpressive::a6, boost::bind(), boost::numeric::odeint::algebra_stepper_base< Algebra, Operations >::m_algebra, boost::numeric::odeint::state_wrapper< V, Enabler >::m_v, boost::ref(), template, and boost::detail::type.

order_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::error_order ( void  ) const

inlineinherited

Returns

Returns the order of an error step if the stepper is used without error estimation.

References boost::numeric::odeint::explicit_error_stepper_base< Stepper, Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::error_order_value.

order_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::order ( void  ) const

inlineinherited

Returns

Returns the order of the stepper if it used without error estimation.

References boost::numeric::odeint::explicit_error_stepper_base< Stepper, Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::order_value.

order_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::stepper_order ( void  ) const

inlineinherited

Returns

Returns the order of a step if the stepper is used without error estimation.

References boost::numeric::odeint::explicit_error_stepper_base< Stepper, Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::stepper_order_value.

Member Data Documentation

const order_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::error_order_value

staticinherited

template<class Algebra, class Operations>

algebra_type boost::numeric::odeint::algebra_stepper_base< Algebra, Operations >::m_algebra

protectedinherited

Referenced by boost::numeric::odeint::algebra_stepper_base< algebra_type, operations_type >::algebra(), boost::numeric::odeint::euler< State, Value, Deriv, Time, Algebra, Operations, Resizer >::calc_state(), boost::numeric::odeint::runge_kutta_dopri5< State, Value, Deriv, Time, Algebra, Operations, Resizer >::calc_state(), boost::numeric::odeint::velocity_verlet< Coor, Velocity, Value, Acceleration, Time, TimeSq, Algebra, Operations, Resizer >::do_step(), boost::numeric::odeint::euler< State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl(), boost::numeric::odeint::modified_midpoint< state_type, value_type, deriv_type, time_type, algebra_type, operations_type, resizer_type >::do_step_impl(), boost::numeric::odeint::runge_kutta4_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl(), boost::numeric::odeint::runge_kutta_dopri5< State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl(), boost::numeric::odeint::runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl(), boost::numeric::odeint::explicit_error_generic_rk< 6, 5, 5, 4, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl(), and boost::numeric::odeint::explicit_generic_rk< 4, 4, State, Value, Deriv, Time, Algebra, Operations, Resizer >::do_step_impl().

wrapped_deriv_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::m_dxdt

protectedinherited

const order_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::order_value

staticinherited

const order_type boost::numeric::odeint::explicit_error_stepper_base< runge_kutta_cash_karp54_classic< State, Value, Deriv, Time, Algebra, Operations, Resizer > , Order, StepperOrder, ErrorOrder, State, Value, Deriv, Time, Algebra, Operations, Resizer >::stepper_order_value

staticinherited

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The documentation for this class was generated from the following file:

• boost_1_57_0/boost/numeric/odeint/stepper/runge_kutta_cash_karp54_classic.hpp