EXP1

//Program.cs

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

namespace EXP1
{
    class Program
    {
        static void Main(string[] args)
        {
            MathLibrary obj = new MathLibrary();
            Console.WriteLine("Enter First Number");
            int a = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("Enter Second Number");
            int b = Convert.ToInt32(Console.ReadLine());

            float substract = obj.Sub(a, b);
            float multiply = obj.Mul(a, b);
            float addition = obj.Add(a, b);
            float divide = obj.Div(a, b);
            float power = obj.Power(a);

            Console.WriteLine("This Application uses functions from MathLibrary.dll todo simple calculations");
            Console.WriteLine("Addition:" + addition);
            Console.WriteLine("Substraction:" + substract);
            Console.WriteLine("Multilication:" + multiply);
            Console.WriteLine("Dividation:" + divide);
            Console.WriteLine("Power of a given Number:" + power);

            Console.ReadLine();


        }
    }
}


//calculation.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Calculation
{
    public class MathLibrary
    {
        public int Add(int a, int b)
        {
            return a + b;
        }
        public int Sub(int a, int b)
        {
            return a - b;
        }
        public int Div(int a,int b)
        {
            return a / b;
        }
        public int Mul(int a,int b)
        {
            return a * b;
        }
        public float Power(float a)
        {
            return a * a;
        }
    }
}