solvers"><code><em>Illinois</em></code></a> or <a href="../../../../../../org/apache/commons/math3/analysis/solvers/PegasusSolver.html" title="class in org.apache.commons.math3.analysis.solvers"><code><em>Pegasus</em></code></a>). These two
 algorithms solve the fundamental issues of the original <em>Regula
 Falsi</em> algorithm, and greatly out-performs it for most, if not all,
 (practical) functions.

 <p>Unlike the <em>Secant</em> method, the <em>Regula Falsi</em> guarantees
 convergence, by maintaining 