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## Function template make_n_step_iterator_begin

boost::numeric::odeint::make_n_step_iterator_begin — Factory function for n_step_iterator. Constructs a begin iterator.

## Synopsis

    // In header: <boost/numeric/odeint/iterator/n_step_iterator.hpp>

    template<typename Stepper, typename System, typename State>
      n_step_iterator< Stepper, System, State >
      make_n_step_iterator_begin(Stepper stepper, System system, State & x,
                                 typename traits::time_type< Stepper >::type t,
                                 typename traits::time_type< Stepper >::type dt,
                                 size_t num_of_steps);

## Description

Parameters: |
`stepper` | The stepper to use during the iteration.
`system` | The system function (ODE) to solve.
`x` | The initial state. const_step_iterator stores a reference of s and changes its value during the iteration.
`t` | The initial time.
`dt` | The initial time step.
`num_of_steps` | The number of steps to be executed.
Returns: | The n-step iterator.