n org.apache.commons.math3.analysis.solvers"><code><em>Illinois</em></code></a> method, another <em>Regula
 Falsi</em>-based method.</p>

 <p>The <em>Pegasus</em> method assumes that the function is continuous,
 but not necessarily smooth.</p>

 <p>Implementation based on the following article: M. Dowell and P. Jarratt,
 <em>The "Pegasus" method for computing the root of an equation</em>,
 BIT Numerical Mathematics, volume 12, number 4, pages 503-508, Springer,
 1972.</p></div>
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