Why doesn't this work?

destin · 03-31-2005, 02:40 PM

ok this may seem like a silly question.. but why doesn't this work?

Code:

#include <stdio.h>
#include <math.h>

int main()
{
    double x;
    
    printf("Find the square root of: ");
    scanf("%f", &x);
    
    double i = sqrt(x);
    
    printf("%f", i);
    return(0);
}

This is what it displays when i input 9:

Code:

Find the square root of: 9
0.000000

destin · 03-31-2005, 04:53 PM

Oh.. hmm i changed the

Code:

double x;

and the

Code:

double i = sqrt(x);

to floats and now it works... but why does anyone know why doubles don't work?

destin · 03-31-2005, 04:55 PM

hmm... i got doubles to work using %lf instead of %f.. lol.. i guess you can delete this thread since i just answered my own questions..