// august

using System;

​

namespace circleCalculator

{

    public class Program

    {

        public static void Area(double unk)

        {

            double rad = Math.Pow(unk / Math.PI, 1 / 2);

            Console.WriteLine(String.Concat("Radius = " + rad));

            Console.WriteLine(String.Concat("Diameter = " + rad * 2));

            Console.WriteLine(String.Concat("Circumference = " + Math.PI * rad * 2));

        }

​

        public static void Circ(double unk)

        {

            double rad = unk / Math.PI / 2;

            Console.WriteLine(String.Concat("Radius = " + rad));

            Console.WriteLine(String.Concat("Diameter = " + rad * 2));

            Console.WriteLine(String.Concat("Area = " + Math.PI * Math.Pow(rad, 2)));

        }

​

        public static void Rad(double unk)

        {

            double rad = unk;

            Console.WriteLine(String.Concat("Diameter = " + rad * 2));

            Console.WriteLine(String.Concat("Circumference = " + Math.PI * rad * 2));

            Console.WriteLine(String.Concat("Area = " + Math.PI * Math.Pow(rad, 2)));

        }

​

        public static void Dia(double unk)

        {

            double rad = unk / 2;

            Console.WriteLine(String.Concat("Radius = " + rad));

            Console.WriteLine(String.Concat("Circumference = " + Math.PI * rad * 2));

            Console.WriteLine(String.Concat("Area = " + Math.PI * Math.Pow(rad, 2)));

        }

​

        public static void Main(string[] args)

        {

            // input calculations in form PARAMETER [enter] NUM

            // permitted parameters are a (area), c (circumference), r (radius), d (diameter)

            // this program only requires knowledge of one property (parameter) of a circle in order to return a full table of values

            // after inputting calculation type 0 to calculate again, type 1 to stop

            string ascii1 = @"

 ________  ___  ________  ________  ___       _______      

|\   ____\|\  \|\   __  \|\   ____\|\  \     |\  ___ \     

\ \  \___|\ \  \ \  \|\  \ \  \___|\ \  \    \ \   __/|    

 \ \  \    \ \  \ \   _  _\ \  \    \ \  \    \ \  \_|/__  

  \ \  \____\ \  \ \  \\  \\ \  \____\ \  \____\ \  \_|\ \ 

   \ \_______\ \__\ \__\\ _\\ \_______\ \_______\ \_______\

    \|_______|\|__|\|__|\|__|\|_______|\|_______|\|_______|

            ";

            string ascii2 = @"

 ________  ________  ___       ________  ___  ___  ___       ________  _________  ________  ________     

|\   ____\|\   __  \|\  \     |\   ____\|\  \|\  \|\  \     |\   __  \|\___   ___\\   __  \|\   __  \    

\ \  \___|\ \  \|\  \ \  \    \ \  \___|\ \  \\\  \ \  \    \ \  \|\  \|___ \  \_\ \  \|\  \ \  \|\  \   

 \ \  \    \ \   __  \ \  \    \ \  \    \ \  \\\  \ \  \    \ \   __  \   \ \  \ \ \  \\\  \ \   _  _\  

  \ \  \____\ \  \ \  \ \  \____\ \  \____\ \  \\\  \ \  \____\ \  \ \  \   \ \  \ \ \  \\\  \ \  \\  \| 

   \ \_______\ \__\ \__\ \_______\ \_______\ \_______\ \_______\ \__\ \__\   \ \__\ \ \_______\ \__\\ _\ 

    \|_______|\|__|\|__|\|_______|\|_______|\|_______|\|_______|\|__|\|__|    \|__|  \|_______|\|__|\|__|

            ";

            Console.WriteLine(ascii1);

            Console.WriteLine(ascii2);

            // add ui and more calculation options -.- 

            for (int c = 0; c < 1; c = Convert.ToInt32(Console.ReadLine()))

            {

                if (c == 0)

                {

                    string func = Console.ReadLine();

                    double unk = Convert.ToDouble(Console.ReadLine());

                    switch (func)

                    {

                        case "a":

                            Area(unk);

                            break;

                        case "c":

                            Circ(unk);

                            break;

                        // finish these ὸ.ό

                        case "r":

                            Rad(unk);

                            break;

                        case "d":

                            Dia(unk);

                            break;

                    }

​

                    Console.WriteLine("enter 0 to begin new calculation, or 1 to end program");

                }

                else

                {

                    Environment.Exit(1);

                }

            }

        }

    }

}