><dd></dd></dl>
<p>It is possible to compute the interpolated vector for x values outside the input range (xq&lt;x(1); xq&gt;x(n)). The coefficients used to compute the y values for xq&lt;x(1) are going to be the ones used for the first interval, while for xq&gt;x(n) the coefficients used for the last interval.</p>
<dl class="section user"><dt>Initialization function</dt><dd></dd></dl>
<p>The initialization function takes as input two arrays that the user has to allocate: <code>coeffs</code> will contain th