package com.imsl.test.example.math;

import com.imsl.math.*;

/**
 * <p>
 * MinUncon Example 1: Minimizes a single variable function.
 * </p>
 *
 * The minimum of \(e^x - 5\) is found using function evaluations only.
 *
 * @see <a href="MinUnconEx1.java">Code</a>
 * @see <a href="doc-files/MinUnconEx1.out">Output</a>
 */
public class MinUnconEx1 {

    public static void main(String args[]) {
        MinUncon zf = new MinUncon();
        zf.setGuess(0.0);
        zf.setAccuracy(0.001);
        MinUncon.Function fcn = new MinUncon.Function() {
            @Override
            public double f(double x) {
                return Math.exp(x) - 5. * x;
            }
        };
        System.out.println("Minimum is " + zf.computeMin(fcn));
    }
}