Ceil Function in C

Ceil function is used to round up a number.
Declaration: double ceil(double);

C programming code:
#include <stdio.h>
#include <math.h>
int main()
{
double n, result;
clrscr();
printf("Enter a number to round it up\n");
scanf("%lf", &n);
result = ceil(n);
printf("Original number = %.2lf\n", n);
printf("Number rounded up = %.2lf\n", result);
getch();
return 0;
}