Example 1: Minimum of a multivariate function
The minimum of is found using function evaluations only.
using System;
using Imsl.Math;
public class MinUnconMultiVarEx1 : MinUnconMultiVar.IFunction
{
public double F(double[] x)
{
return 100.0 * ((x[1] - x[0] * x[0]) * (x[1] - x[0] * x[0])) +
(1.0 - x[0]) * (1.0 - x[0]);
}
public static void Main(String[] args)
{
MinUnconMultiVar solver = new MinUnconMultiVar(2);
solver.SetGuess(new double[]{- 1.2, 1.0});
double[] x = solver.ComputeMin(new MinUnconMultiVarEx1());
Console.Out.WriteLine
("Minimum point is (" + x[0] + ", " + x[1] + ")");
}
}
Output
Minimum point is (0.99999996726513, 0.99999993304521)
Link to C# source.