style="width: 14%">
</colgroup>
<thead>
<tr class="header">
<th style="text-align: center;">parameter</th>
<th style="text-align: left;">description</th>
<th style="text-align: center;">constraints</th>
<th style="text-align: center;">default</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: center;"><code>epsilon</code></td>
<td style="text-align: left;">finite difference size</td>
<td style="text-align: center;">(0, infty)</td>
<td style="text-align: center;">1e–6</td>
</tr>
<tr class=