//Programmer: Teresa Dang

//Dates: (start/end) April 29-30

//Project: Mathematical Lines

//Description: App that retrieves coordinates of two points from the user which is used to compute the slope, length, and midpoint of the line. 

​

using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(Math.Sqrt(2,2));

        Console.WriteLine("Math Lines");

        Console.WriteLine("\n");

        double x1; //represents the x coordinate of point A

        double y1; //represents the y coordinate of point A

        Console.WriteLine("Point A:");

        Console.Write("X");

        x1 = Convert.ToDouble( Console.ReadLine()); //retrieve the x coordinate of point A from user

        Console.Write("Y");

        y1 = Convert.ToDouble( Console.ReadLine()); //retrieve the y coordinate of point A from user

        double x2; //represents the x coordinate of point B

        double y2; //represents the y coordinate of point B

        Console.WriteLine("Point B:");

        Console.Write("X");

        x2 = Convert.ToDouble( Console.ReadLine()); //retrieve the x coordinate of point B from user

        Console.Write("Y");

        y2 = Convert.ToDouble( Console.ReadLine()); //retrieve the y coordinate of point B from user

        Console.WriteLine("\n");

        double slope; //represents the slope of the line

        slope = (y2-y1)/(x2-x1); //computes the slope of line AB

        Console.Write("Slope: ");

        Console.WriteLine(Math.Round(slope,2)); //rounds the slope to two decimal places

        double length; //represents the length of the line

        length = Math.Sqrt(Math.Pow((x2-x1), 2) + Math.Pow((y2-y1), 2)); //computes the length of line AB

        Console.Write("Length: ");

        Console.WriteLine(Math.Round(length, 2)); //rounds the length to two decimal places

        double xM; //represents the x coordinate of the midpoint in line AB

        double yM; //represents the y coordinate of the midpoint in line AB

        xM = Math.Round((x1+x2)/2, 2); //computes the x coordinate of the midpoint in line AB

        yM = Math.Round((y1+y2)/2, 2); //computes the y coordinate of the midpoint in line AB

        Console.Write("Midpoint: ");

        Console.WriteLine("(" + xM + "," + yM + ")");

    }

}