#include <iostream>
#include <math.h>
#include <string>
using namespace std;

int main ()

{
    double u, v;
    string str;

    cout << "Line 1: 2 to the power of 6 = " << pow (2,6) << endl;
    u = 12.5;
    v = 3.0;

    cout << "Line 4: " << u << "to the power of " << v << " = " << pow (u, v) << endl;
    cout << "Line 5: Square root of 24 = " << sqrt (24.0) << endl;

    u = pow(8.0, 2.5);
    cout << "Line 7: u = " << u << endl;
    str = "Programming with C++";
    cout << "Line 9: Length of str = " << str.length () << endl;




    system("PAUSE");

}