#include <stdio.h>
#include <stdlib.h>
#define EPS 1e-7
main()
{
float a;
printf("please enter a num:");
scanf("%f",&a);
if( a < EPS)
printf("%f\n",a*(-1));
if (a > EPS)
printf("%f\n",a);
}
#include <stdio.h>
#include <stdlib.h>
#define EPS 1e-7
main()
{
float a;
printf("please enter a num:");
scanf("%f",&a);
if( a < EPS)
printf("%f\n",a*(-1));
if (a > EPS)
printf("%f\n",a);
}