Example: Zeros of a Univariate Function

using System;
using Imsl.Math;

public class ZeroFunctionEx1 : ZeroFunction.IFunction
{
	public double F(double x)
	{
		return Math.Sin(x);
	}


	public static void  Main(String[] args)
	{
		ZeroFunction.IFunction fcn = new ZeroFunctionEx1();
		
		ZeroFunction zf = new ZeroFunction();
		double[] guess = new double[]{5, 18, - 6};
		double[] zeros = zf.ComputeZeros(fcn, guess);
		for (int k = 0; k < zeros.Length; k++)
		{
			Console.Out.WriteLine
				(zeros[k] + " = " + (zeros[k] / Math.PI) + " pi");
		}
	}
}

Output

6.28318530717953 = 1.99999999999998 pi
18.8495559215893 = 6.0000000000161 pi
-6.28318530717954 = -1.99999999999999 pi