Chapter 3, Problem 12SA

What is the output of the following program? (2, 3, 6, 8)

#include <iostream>

#include <cmath>

#include <string>

#include <iomanip>

using namespace std;

int main()

{

     double x, y;

     string str;

     x = 9.0;

     y = 3.2;

     cout << fixed << showpoint << setprecision (2);

     cout << x << "^" << y << " = " << pow(x, y) << endl;

     cout << "5.0^2.5 = " << pow(5.0, 2.5) << endl;

     cout << "sqrt (48.35) = " << sqrt (48.35) << endl;

     cout << "static_cast<int>(sqrt(pow (y, 4))) = "

     << static_cast<int>(sqrt(pow (y, 4))) << endl;

     str = "Predefined functions simplify programming code!";

     cout << "Length of str = " << str.length() << endl;

     return 0;

}