<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE Runge-Kutta PUBLIC "-//spaceroots.org//DTD Runge-Kutta V1.2//EN"
                             "http://www.spaceroots.org/Runge-Kutta.dtd" >

<!-- $Id: Midpoint.xml,v 1.3 2004/05/23 17:41:52 luc Exp $ -->

<!-- this is the midpoint method -->
<Runge-Kutta name="midpoint" >

  <time-steps>
    <zero/>
    <rational> <p>1</p> <q>2</q> </rational>
  </time-steps>

  <internal-weights>
    <row>
      <!-- empty first row -->
    </row>
    <row>
      <rational> <p>1</p> <q>2</q> </rational>
    </row>
  </internal-weights>

  <estimation-weights>
    <zero/>
    <one/>
  </estimation-weights>

</Runge-Kutta>
