what is the output of this program?
what is the output of this
Given Program:
//header files
#include <iostream>
#include <cmath>
#include <string>
#include <iomanip>
using namespace std;
//main function
int main()
{
//declare the variables
double x, y;
string str;
//set the values
x = 9.0;
y = 3.2;
//display the output
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;
}
Explanation:
- In the 1st “cout” statement set the precision as “2” for all the output values
- In 2nd “cout” statement, calculate the “x” power “y” and display the output
- In 3rd “cout” statement, calculate the square root of “48.35”
- In 4th “cout” statement, calculate the “y” power “4” then square root the result and make it as “static_cast”
- In 5th “cout” statement, display the length of the string.
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