Math.Atan2 Returns the angle whose tangent is the quotient of two specified numbers.

    

using System;

class Sample
{
    public static void Main()
    {
        double x = 1.0;
        double y = 2.0;
        double angle;
        double radians;

        radians = Math.Atan2(y, x);
        angle = radians * (180 / Math.PI);

        Console.WriteLine(radians);
        Console.WriteLine(angle);
    }
}

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Math.Atan2 Returns the angle whose tangent is the quotient of two specified numbers. : Math « Development Class « C# / C Sharp

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