sample5_4.cs

来自「C#的数值计算的几乎所有算法」· CS 代码 · 共 35 行

/*
 * 示例程序Sample5_4: NLEquations类的求非线性方程一个实根的连分式解法
 */

using System;
using CSharpAlgorithm.Algorithm;

namespace CSharpAlgorithm.Sample
{
	class Class1
	{
        // 建立NLEquation的子类，在其中重载函数func
        class NLEq : NLEquations
        {
            protected override double Func(double x)
            {
                double y = x*x*(x-1.0)-1.0;
                return y;
            }
        }
        
        [STAThread]
		static void Main(string[] args)
		{
            // 求解
            NLEq nleq = new NLEq();
            double x = 1.0;
            if (nleq.GetRootPq(ref x, 0.000001))
                Console.WriteLine("求得的根为：" + x);
            else
                Console.WriteLine("求解失败");
        }
	}
}