3.3.11

#include "pch.h"
#include <iostream>
#include <math.h>
#include <iomanip>
using namespace std;
double calculate_S(double x, double Y,int &n)
{
    double r = 1, S = 1;
    n = 1;
    while(abs(S-Y)>=0.0001) {
        r *= x / (2 * n);
        S += r * (n*n + 1);
        n++;
    }
    return S;
}
double calcucalculate_Y(double x)
{
    return (x*x / 4 + x / 2 + 1)*exp(x / 2);

}

int main()
{
    setlocale(LC_ALL, "RUS");
    int n;
    double a, b, h, S, Y, r;
    cout << "Введите a" << endl;
    cin >> a;
    cout << "Введите b" << endl;
    cin >> b;
    cout << "Введите h" << endl;
    cin >> h;

    for (double x = a; x <= b; x += h) {
        Y = calcucalculate_Y(x);
        S = calculate_S(x, Y, n);
        cout << setw(10) << "s=" << S << setw(10) << "y=" << Y << setw(10) << "s-y=" << abs(S - Y) <<setw(15)<<"n=" <<n<< endl;
    }
    system("pause");
    return 0;

}