How Do I Cout A Double Or Float

How can I use the COUT to display DOUBLE or FLOAT values?

Thanks

Paul

#include <iostream.h>

int main()
{
double num = 3.14;
float num2 = 3.201;

cout<<num<<" "<<num2<<endl;
return 0;
}

thats a simple way to do it, you just do it like any other variable

Is there a way to change the display so that I only see 3.1 or 3.2 from your example??

Thanks again.

Paul

look up setprecision() and other stream modifiers in your compilers online help section or the stream section of your favorite textbook/tutorial.

Two ways, either:

Code:

#include <iostream>
#include <iomanip>
using namespace std;

    ...

    cout << setiosflags( ios::fixed ) << setprecision( 1 )
         << num << ' ' << num2 << endl;

Or:

Code:

#include <iostream>
using namespace std;

    ...

    cout.setf( ios::fixed );
    cout.precision( 1 );
    cout << num << ' ' << num2 << endl;