Printing float numbers

How can I print a float number, using a fixed precision?
In C would be:
printf("%.20f",number);
Thanks in advance!

One way is to use a combination of the setiosflags function and the setprecision function, i.e:

Code:

float f = 9.87463f;
cout << f << endl;
cout << setiosflags(ios::fixed) << setprecision(3) << f << endl;

Output is:
9.87463
9.875

Thanks for the reply, but I was talking about fill with 0´s the number, for example:

Code:

float f=0.6;
float f2=0.12;
printf("%.5f\n%.5f");

Output:
0.60000
0.12000

Code:

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

int main()
{
   float f = .56;
   cout.setf(ios::showpoint | ios::fixed);
   cout << f << endl;
   return 0;
}

something like this?

the code that hk_mp5kpdw gave you should do what you want it to...