Koding C# Menghitung Jumlah

Kamis, Februari 19, 2015 KODING Visual Studio 0 Comments

menghitung Jumlah

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication32

{

    class Program

    {

        static void Main(string[] args)

        {

           

           

            int hasil = 0;

            Double x2 = 0.00, varians = 0;

            String soal = "", opr = "";

            int angka = Convert.ToInt16(Console.ReadLine());

           

            Console.WriteLine("Menghitung Jumlah  : ");

            for (int i = 1; i <= angka; i++)

            {

                if (i % 2 == 0)

                {

                    opr = "+";

                    hasil = hasil + i;

                }

                else

                {

                    if (i == 1)

                    {

                        hasil = hasil + i;

                    }

                    else

                    {

                        opr = "-";

                        hasil = hasil - i;

                    }

                }

                x2 = x2 + Math.Pow(i, 2);

                //membangun soal

                soal = soal + " " + opr + " " + Convert.ToString(i);

            }

            //ini rumus Varians

            varians = (x2 - (Math.Pow(hasil, 2)) / angka) / angka - 1;

            //tampilkan Soal hasil

            Console.WriteLine(soal + " = " + hasil + "\n");

            //tampilkan Varians

            Console.WriteLine("Varians =  " + varians);

            Console.ReadKey();

        }

    }

}