public NewtonRaphson(Outside obj, double val)
{
parent = obj;
if (val < 0)
{
throw new ArgumentOutOfRangeException("value must be greater than 0");
}
parent.val = val;
}
static void Main(string[] args)
{
Outside outside = new Outside();
Outside.NewtonRaphson newtonRaphson = new Outside.NewtonRaphson(outside, 3);
Console.WriteLine(newtonRaphson.Sqrt());
newtonRaphson.Set(5);
Console.WriteLine(newtonRaphson.Sqrt());
newtonRaphson.Set(37);
Console.WriteLine(newtonRaphson.Sqrt());
}