Floor function returns the greatest integer not greater than x. For example, if the input is 2.25 then the output will be 2.00.
Declaration: double floor(double x);
C programming code for floor
#include <stdio.h>
#include <math.h>
#include <math.h>
int main()
{
double n, result;
printf("Enter a number to round it down\n");
scanf("%lf", &n);
result = floor(n);
printf("Original number = %.2lf\n", n);
printf("Number rounded down = %.2lf\n", result);
return 0;
}
Output of program: