 8</span>&#160;<span class="keywordtype">        real</span>(real64), <span class="keywordtype">intent(in)</span>, <span class="keywordtype">dimension(:)</span> :: t, x, v</div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="keywordtype">        real</span>(real64), <span class="keywordtype">intent(in)</span> :: period</div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;        <span class="keywordtype">class</span>(errors), <span c