Floor Function

Syntax:

float floorf(float num);

double floor(double num);

long double floorl(long double num);

Example:

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

  int main()

  {
       printf("%f", floor(12.4));

       printf("%f", floor(-10.9));

       printf("%f", floor(0.9));
	   
       printf("%f", floor(-1.9));

 return 0;

  }