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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>Spline interpolation is a method of interpolation where the interpolant is a piecewise-defined polynomial called "spline".</p>
<dl class="section user"><dt>Introduction</dt><dd></dd></dl>
<p>Given a function f defined on the interval [a,b], a set of n nodes x(i) where a=x(1)&lt;x(2)&lt;...&lt;x(n)=b and a set of n values y(i) = f(x