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The substitution of $re^{i\theta}$ for $z$ in a Polynomial $p(z)$. $p(z)$ is then plotted as a function of $\theta$ for a given $r$ in the Complex Plane. By varying $r$ so that the curve passes through the Origin, it is possible to determine a value for one Root of the Polynomial.

© 1996-9 Eric W. Weisstein