Amaliy matematika va informatika” yo’nalishi 18. 07-guruh talabasi Normatov Omadbek Rahmonjon o’g’lining

ILOVA

Masala. integralning qiymatini trapetsiyalar hamda Simpson formulasi yordamida dasturini tuzing.(a=0; b ;n=10 olib ko’ramiz.)


using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

namespace hisoblashusul
{
/// <summary>
/// Description of MainForm.
/// </summary>
public partial class MainForm : Form
{int n,i;
double a,b,h,s=0,t=0;
public MainForm()
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();

//
// TODO: Add constructor code after the InitializeComponent() call.

//
}
void MainFormLoad(object sender, EventArgs e)
{

}
void Button1Click(object sender, EventArgs e)

{
a=double.Parse(textBox1.Text);
b=double.Parse(textBox2.Text);
n=int.Parse(textBox3.Text);
h=(b-a)/n;
Double[] g=new double[n+2];
Double[] y=new double[n+2];
for(i=0;i<=n;i++)
{
g[i]=a+i*h;y[i]=1/(g[i]+1);
}
//Simpson qonuni
for(i=0;i<=n;i++)
{
if (i == 0 || i == n)
{s += y[i];t+=y[i]/2;}
else if (i % 2 != 0)
{s += 4 * y[i];t+=y[i];}
else
{s += 2 * y[i];t+=y[i];}
}
s=s*h/3;t=t*h;
textBox4.Text=s.ToString();
textBox5.Text=t.ToString();
}
}
}
Dastur natijasi.

Dastur natijasidan Simpson usulining trapetsiya usuliga nisbatan aniq yechimga juda yaqinligi ko’rinib turibdi.