decimal??

Hi there i don't get this using cout and printf here's the code

Code:

#include <iostream>
#include <stdio.h>
#include <iomanip>
#include <conio.h>

using namespace std;

int main(void)
{
    float num;
    
    printf("input number: \n");
    scanf("%f", &num);
    printf("The number is: %.2f\n", num);
    cout << setprecision (4) << "The number is: " << num << endl;
    getch();

    
}

why when using printf you can easily change the decimal places but why in cout??? for example i input number 11.50 the output goes like this.

Code:

The number is 11.50 <--------------------------- using printf.
The number is 11.5    <--------------------------using cout.

why is that? cout can't print the last zero even if i use <iomanip>?
any idea there? thanks

guess what you want is

Code:

    printf("The number is: %.2f\n", num);
    cout <<"The number is: " << setprecision(2) << fixed <<  num << endl;

Kurt

Thank you very much mate, i really appreciate your help....