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Reference.org
Durand–Kerner method
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<p>In <a href="/facts/Numerical_analysis/QT9cYa9z">numerical analysis</a>, the Weierstrass method or Durand–Kerner method, discovered by <a href="/facts/Karl_Weierstrass/4U8vdQzL">Karl Weierstrass</a> in 1891 and rediscovered independently by Durand in 1960 and Kerner in 1966, is a <a href="/facts/Root-finding_algorithm/IxTDkhBq">root-finding algorithm</a> for solving <a href="/facts/Polynomial/Lzak8VVx">polynomial</a> <a href="/facts/Equation_(mathematics)/pxFzLAVR">equations</a>. In other words, the method can be used to solve numerically the equation </p> <i>f</i>(<i>x</i>) = 0, <p>where <i>f</i> is a given polynomial, which can be taken to be scaled so that the leading coefficient is 1. </p>