using System;

//James Serritslev

// Math Operations Program

// NOTE all of the hardcoded numbers could instead be decided by the user by prompting them. But I hardcoded them in this program

public class Program

{

    // Basic arithmetic with method overloading

    public int Add(int a, int b){

        Console.Write($"Addition: {a} + {b} = ");

        return a + b;

    }

    public double Add(double a, double b){

        Console.Write($"Double Addition: {a} + {b} = ");

        return a + b;

    }

    public decimal Add(decimal a, decimal b){

        Console.Write($"Decimal Addition: {a} + {b} = ");

        return a + b;

    }

​

    // Using out parameters

    public void DivideWithRemainder(int dividend, int divisor, out int quotient, out int remainder){

        quotient = dividend/divisor;

        remainder = dividend%divisor;

        Console.Write($"Division: {dividend} / {divisor} = ");

    }

​

    // Using ref parameter

    public void SwapNumbers(ref int a, ref int b){

        Console.WriteLine($"Swapped Numbers: a = {b} b = {a}");

    }

​

    // Using params

    public double CalculateAverage(params double[] numbers){

        double sum = 0;

        double count = 0;

        foreach(int num in numbers){ //get the sum using foreach loop 

            sum += num;

            count ++; //count variable is for the amount of numbers in the array

        }

        Console.Write($"Average of numbers: ");

        return sum/count; //return average value

    }

​

    // Using optional parameters

    public double CalculatePower(double baseNumber, int exponent){

        Console.Write($"Power Calculation: {baseNumber}^{exponent} = ");

        return Math.Pow(baseNumber, exponent); //power operation

    }

    public static void Main()

    {

        Program program = new Program(); //create instance of program class in main

        Console.WriteLine("Math Operations Test");

        Console.WriteLine("------------------------");

        int sum = program.Add(10, 20); //use int addition method

        Console.WriteLine($"{sum}"); //returned output from method

        double dSum = program.Add(15.5, 25.7);// Decimal was not working for me, but double was working for decimal numbers

        Console.WriteLine($"{dSum}"); //returned output from method

        int quotient, remainder; 

        program.DivideWithRemainder(17, 5, out quotient, out remainder); // Using division method

        Console.WriteLine($"{quotient} remainder {remainder}"); //returned out variables

        int a = 20; 

        int b = 10;

        program.SwapNumbers(ref a, ref b); // calling swap method

        double average = program.CalculateAverage(10,19); // Assigning average variable to return value of this method

        Console.WriteLine($"{average}"); //output 

        double power = program.CalculatePower(2, 3); //assigning power value to the return value of this method

        Console.WriteLine($"{power}"); //output 

    }

}