using System;

public class Program

{

    public static void Main()

    {

        //Slope rise/run

        //Distance (x2-x1)^2 + (y2-y1)^2

        //Midpoint x1+x2/2, y1+y2/2

        //Line y=mx+b

        //EXTRA

        //x-intercept, y-intercept, & slope angle with x-axis

        //x-intercept x1 + x2 / 2

        //y-intercept y=(m)(x)+b

        //Grabbing coordinate info from user

        Console.WriteLine("Mathematical Lines");

        Console.WriteLine("Enter Coordinate xA");

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

        Console.WriteLine("Enter Coordinate yA");

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

        Console.WriteLine("Enter Coordinate xB");

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

        Console.WriteLine("Enter Coordinate yB");

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

        //Line Info Header

        Console.WriteLine("\nLine Info");

        Console.WriteLine(new string('-', 30));

        //Slope of line

        double slope = (yACORD - yBCORD) / (xACORD - xBCORD);

        //Outputs Slope

        Console.WriteLine("Slope: " + slope);

        //Distance of Line

        double distance = Math. Sqrt((Math. Pow(xACORD - xBCORD, 2) + Math. Pow(yACORD - yBCORD, 2)));

        //Outputs the distance of line

        Console.WriteLine("Distance: " + Math.Round(distance, 2));

        //Midpoint of x cord, & y cord

        double midpointX = (xACORD + xBCORD) / 2;

        double midpointY = (yACORD + yBCORD) / 2;

        //Puts together x, y to output midpoint coords

        Console.WriteLine("Midpoint: " + "(" +  midpointX + "," + " " + midpointY + ")");

        //X & y intercept

        double xInter = (xACORD + xBCORD) / 2;

        double yInter = yACORD - (slope * xACORD);

        //outputs x & y intercept to console

        Console.WriteLine("X-Intercept: " + "(" + xInter + ", 0)");

        Console.WriteLine("Y-Intercept: " + "(0, " + yInter + ")");

        //Gives full equation of line

        Console.WriteLine("Equation Of Line: Y = " + slope + "x + " + yInter);

        //Angle of slope

        double slopeAngle = Math.Round(Math.Atan(slope ) * 180 / Math.PI);

        //Outputs angle of slope

        Console.WriteLine("Angle of Slope: " + slopeAngle + "°");

    }

}