rek_ryad_26v

#include "stdafx.h"
#include <cstdlib>
#include <cmath>
#include <math.h>
#include <iostream>

using namespace std;

void rek_r(double y0, double y1);
int main() {
    double y0 = 0.5;
    double y1 = 0.25;
    rek_r(y0, y1);
    system("PAUSE");
    return 0;
}
void rek_r(double y0, double y1) {

    double sum;
    int i = 2;
    do {
        sum = (tanh(y0 * y1)) / i;
        //cout  << i << " - " << sum << endl;
        i++;
        y0 = y1;
        y1 = sum;
        if (i > 50) {
            cout << "Rayd rashod";
            break;
        }
    } while (fabs(y0 - y1) > 0.0001);
    if (i < 50) {
        cout << "Rayd  shod. Summa:" << sum;
    }
}