Vectors

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


namespace Vektory
{
    class Program
    {
        static void Main(string[] args)
        {

            Vektor prvnivektor = new Vektor(5);
            Vektor druhyvektor = new Vektor (2,3);
            Vektor tretivektor = new Vektor (4,1,3);
            Vektor promennyvektor = new Vektor(0, 0, 0);
            double vysled;
            vysled = tretivektor.DelkaVektoru(tretivektor);
            prvnivektor.VypisVektor();
            druhyvektor.VypisVektor();
            tretivektor.VypisVektor();
            promennyvektor = druhyvektor + tretivektor;
            promennyvektor.VypisVektor();
            promennyvektor = druhyvektor - tretivektor;
            promennyvektor.VypisVektor();
            promennyvektor = druhyvektor * tretivektor;
            Console.WriteLine(vysled);
            vysled = tretivektor.SmerVektoru(tretivektor, druhyvektor);
            Console.WriteLine(vysled);
        }
    }
}


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Vektory
{
    class Vektor
    {
        public double x;
        public double y;
        public double z;

        public Vektor(double x)
        {
            this.x = x;
            this.y = 0;
            this.z = 0;
        }
        public Vektor(double x, double y)
        {
            this.x = x;
            this.y = y;
            this.z = 0;
        }
        public Vektor(double x, double y, double z)
        {
            this.x = x;
            this.y = y;
            this.z = z;
        }

        public void VypisVektor()
        {
            Console.WriteLine("{0},{1},{2}", this.x, this.y, this.z);
        }
        static public Vektor operator +(Vektor a, Vektor b)
        {
            double x = a.x + b.x;
            double y = a.y + b.y;
            double z = a.z + b.z;

            Vektor vysledky = new Vektor(x, y, z);
            return vysledky;
        }
        static public Vektor operator -(Vektor a, Vektor b)
        {
            double x = a.x - b.x;
            double y = a.y - b.y;
            double z = a.z - b.z;

            Vektor vysledky = new Vektor(x, y, z);
            return vysledky;
        }
        static public Vektor operator *(Vektor a, Vektor b)
        {
            double x = a.x * b.x + a.y * b.y + a.z * b.z;
            Vektor vysledky = new Vektor( x);
            Console.WriteLine("Výsledek toho součinu je tolik:");
            Console.WriteLine(x);
            return vysledky;
        }

        public double DelkaVektoru(Vektor a)
        {
            double delka;
            delka = Math.Sqrt((a.x*a.x)+(a.y*a.y)+(a.z*a.z));
            return delka;
        }
        public double SmerVektoru(Vektor a, Vektor b)
        {
            double smer;
            smer = (a.x * b.x + a.y * b.y + a.z * b.z) / (DelkaVektoru(a)*DelkaVektoru(b));
            smer = Math.Acos(smer);
            smer = smer * 180 / Math.PI;

            return smer;
        }

    }
}