LagrangeInterpolation

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Tibi
 */
import java.util.*;

public class LagrangeInterpolacio extends IllesztettFuggveny {

    LagrangeInterpolacio() {
        super();
    }

    LagrangeInterpolacio( LagrangeInterpolacio obj ) {
        super( obj );
    }

    LagrangeInterpolacio( AdatParok ap ) {

    }

    float ertek( float ertek , AdatParok obj ) {
        float fx = 0;
        for( int i = 0; i < obj.size(); i++ ) {
            float Lg = 1;
            for( int j = 0; j < obj.size(); j++ ) {
                if( i != j ) {
                    Lg *= ( ertek - obj.getAdatPar( j ).x ) /
                          ( obj.getAdatPar( i ).x - obj.getAdatPar( j ).x );
                }
            }
            fx += Lg * obj.getAdatPar( i ).y;
        }
        return fx;
    }
}