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package algemeen;

/**
 *
 * @author gianni.berge
 */
public class Helper {
    public static double afronden(double getal, int digitsNaKomma){
        double afgerond = Math.round(getal * Math.pow(10, digitsNaKomma)) / Math.pow(10, digitsNaKomma);
        return afgerond;
    }
    public static double zoekGemiddelde(int[] getallen){
        double gemiddelde = 0;
        for(int i = 0; i < getallen.length; i++){
            gemiddelde+= getallen[i];
        }
        gemiddelde/=getallen.length;
        return gemiddelde;
    }
    public static int ggd(int a, int b){
        while(a != b){
            if(a > b){
                a-= b;
            }else{
                b-= a;
            }
        }
        return a;
    }
    public static int kgv(int a, int b){
        if(a == 0 && b == 0) return 0;
        return ((a * b) / ggd(a, b));
    }
}