td><p>The system function to solve, hence the r.h.s. of the ordinary differential equation. It must fulfill the Simple System concept. </p></td>
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<td><p><span class="term"><code class="computeroutput">t</code></span></p></td>
<td><p>The value of the time, at which the step should be performed. </p></td>
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<td><p><span class="term"><code class="computeroutput">x</code></span></p></td>
<td><p>The state of the ODE which should be solved. After calling do_step the result is updated in x. </p>