Example 1: Zeros of a Polynomial

using System;
using Imsl.Math;

public class ZeroPolynomialEx1
{
	public static void  Main(String[] args)
	{
		double[] coef = new double[]{- 2, 4, - 3, 1};
		
		ZeroPolynomial zp = new ZeroPolynomial();
		Complex[] root = zp.ComputeRoots(coef);
		
		for (int k = 0; k < root.Length; k++)
		{
			Console.Out.WriteLine("root = " + root[k]);
			Console.Out.WriteLine("    radius = " + zp.GetRadius(k));
			Console.Out.WriteLine("    status = " + zp.GetStatus(k));
		}
	}
}

Output

root = 0.99999999999999978-0.99999999999999978i
    radius = 1.99006775678924E-14
    status = False
root = 1.0000000000000004+1.0000000000000002i
    radius = 1.96185227616234E-14
    status = False
root = 0.99999999999999989-1.6543612251060553E-24i
    radius = 2.04503081135961E-14
    status = False