MonteCarlo/MonteP.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Monte_Carlo_P
{
    internal class MonteP
    {
        public void Method_Monte_Karlo(double k)
        {
            double n = 0;
            Console.WriteLine("Введите длину и ширину");
            double dlina = Convert.ToDouble(Console.ReadLine());
            double shirina = Convert.ToDouble(Console.ReadLine());
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble()*dlina;
                double y = rand.NextDouble()*shirina;
                if (Math.Pow((x - 1), 2) + Math.Pow((y - 1), 2) <= 1) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Primer0(double k)
        {
            double n = 0;
            double dlina = 8.0;
            double shirina = 5.0;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble() * dlina;
                double y = rand.NextDouble() * shirina;
                if ((x*(10-x))/5 >= y && (x/3) <= y) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Primer1(double k)
        {
            double n = 0;
            double dlina = 15;
            double shirina = 5;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = (rand.NextDouble() * dlina) - shirina;
                double y = rand.NextDouble();
                if (Math.Sin(x) >= y && y>=0) n++;
            }
            double S = 20 * n / k;
            Console.WriteLine(S);
        }
        public void Primer2(double k)
        {
            double n = 0;
            double dlina = 7;
            double shirina = 8;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble() * dlina;
                double y = rand.NextDouble() * shirina;
                if ((x*(8-x))/2 >= y && y>= x/2) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Primer3(double k)
        {
            double n = 0;
            double dlina = 12;
            double shirina = 6;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble() * dlina;
                double y = rand.NextDouble() * shirina;
                if (Math.Pow((x-6),2)/6 <= y && y<=6) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Primer4(double k)
        {
            double n = 0;
            double dlina = 10;
            double shirina = 4;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble() * dlina;
                double y = rand.NextDouble() * shirina;
                if ((x*(12-x))/9 >= y && y>= x/5) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Primer5(double k)
        {
            double n = 0;
            double dlina = 8;
            double shirina = 4;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble() * dlina;
                double y = rand.NextDouble() * shirina;
                if ((x * (8 - x)) / 4 >= y && y >= (8-x) / 8) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Primer6(double k)
        {  
            double n = 0;
            double dlina = 2.9;
            double shirina = 0.99;
            double S0 = dlina * shirina;
            for (int i = 0; i < k; i++)
            {
                Random rand = new Random();
                double x = rand.NextDouble() * dlina;
                double y = rand.NextDouble() * shirina;
                if (Math.Sin(x) >= y && y>= Math.Pow((x-2),2)/2) n++;
            }
            double S = S0 * n / k;
            Console.WriteLine(S);
        }
        public void Choise() 
        {
            Console.WriteLine("Введите k");
            double k = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("Расчет числа ПИ");
            Method_Monte_Karlo(k);
            Console.WriteLine("Расчет примера 0");
            Primer0(k);
            Console.WriteLine("Расчет примера 1");
            Primer1(k);
            Console.WriteLine("Расчет примера 2");
            Primer2(k);
            Console.WriteLine("Расчет примера 3");
            Primer3(k);
            Console.WriteLine("Расчет примера 4");
            Primer4(k);
            Console.WriteLine("Расчет примера 5");
            Primer5(k);
            Console.WriteLine("Расчет примера 6");
            Primer6(k);
        }
    }
}