using System using System Collections Generic using System Linq using

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static double func(double x)
{
return x - (3 * x - 4 * Math.Log(x) - 5) * 4 / 7;
}
static void Main(string[] args)
{
double a = 2, b = 4;
double eps = 0.0001;
double x1 = func((a + b) / 2), x2 = func(x1);
while (Math.Abs(x2 - x1) > eps)
{
double x_local = x2;
x2 = func(x1);
x1 = x_local;
}
double answer = x2;
Console.WriteLine("{0:f4}",answer);
Console.ReadKey();
}
}
}