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- #include <iostream>
- #include <cmath>
- #include <fstream>
- using namespace std;
- int main() {
- int it=0, ite=0;
- double a,b;
- double de, eps=0.001, x[2], MI;
- ifstream fin ("/Users/urbanovich/Programming/Lab11/Lab11/file.txt");
- if(!fin) {
- cout << "Error. Can't open file.\n";
- return 1;
- }
- do{
- fin >> a >> b >> eps;
- cout << "Поиск корней функции 4x-7sin(x) в интервале: " << a << " " << b << " . Точность: " << eps;
- x[0]=a;
- do {
- ite++;
- x[1] = 4*x[0]-7*sin(x[0]);
- de=fabs(x[1]-x[0]);
- x[0]=x[1];
- } while(!(de<=eps && ite>100));
- MI=x[0];
- cout << "\nКорень в заданом интервале = " << MI << " . Кол-во итераций: " << it << "\n";
- it++;
- } while (it < 3);
- fin.close();
- return 0;
- }
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