r>
<tr><td><a href="Interval1.html#VALsqrt_i">sqrt_i</a> [<a href="Interval1.html">Interval1</a>]</td>
<td><div class="info">
Interval square root
</div>
</td></tr>
<tr><td><a href="Interval2.html#VALsub_di">sub_di</a> [<a href="Interval2.html">Interval2</a>]</td>
<td><div class="info">
Subtraction of a number and an interval <b>(optimal)</b>
</div>
</td></tr>
<tr><td><a href="Interval1.html#VALsub_di">sub_di</a> [<a href="Interval1.html">Interval1</a>]</td>
<td><div class="info">
Subtraction of a number an