Funktionen.java

gehe zur Dokumentation dieser Datei

package eos;
 
import java.util.Random;
 
public abstract class Funktionen {
    private static Random random = new Random();
 
    public static int round(double z) {
        return (int) Math.round(z);
    }
 
    public static int trunc(double z) {
        return (int) Math.floor(z);
    }
 
    public static int zufall(int von, int bis) {
        return random.nextInt(bis - von + 1) + von;
    }
 
    public static double abs(double z) {
        return Math.abs(z);
    }
 
    public static double sqrt(double z) {
        return Math.sqrt(z);
    }
 
    public static double sin(double alpha) {
        return Math.sin(alpha / 180 * Math.PI);
    }
 
    public static double cos(double alpha) {
        return Math.cos(alpha / 180 * Math.PI);
    }
 
    public static double tan(double alpha) {
        return Math.tan(alpha / 180 * Math.PI);
    }
 
    public static double arctan(double m) {
        return Math.atan(m) * 180 / Math.PI;
    }
 
    public static double arcsin(double m) {
        return Math.asin(m) * 180 / Math.PI;
    }
 
    public static double arccos(double m) {
        return Math.acos(m) * 180 / Math.PI;
    }
 
    public static double phi(double x, double y) {
        double phi = Math.atan(y / x);
        if (x < 0) {
            return phi * 180 / Math.PI + 180;
        } else {
            return phi * 180 / Math.PI;
        }
    }
 
    public static double r(double x, double y) {
        return Math.sqrt(x * x + y * y);
    }
 
    private Funktionen() {
    }
}