ession</a>&nbsp;f,
 <a href="../Argument.html" title="class in org.mariuszgromada.math.mxparser">Argument</a>&nbsp;x,
 double&nbsp;x0)</code></div>
<div class="col-last even-row-color">
<div class="block">Backward difference(1) operator (at x = x0).</div>
</div>
<div class="col-first odd-row-color"><code>static double</code></div>
<div class="col-second odd-row-color"><span class="type-name-label">Calculus.</span><code><a href="../mathcollection/Calculus.html#derivative(org.mariuszgromada.math.mxparser.Expr