C/math.h/ceil

ceil: returns the smallest integer not less than num

//Declaration: float ceilf(float num);

              double ceil(double num); 
              long double ceill(long double num);

//Return: Given 1.02, ceil() would return 2.0.

              Given -1.02, ceil() would return -1.

 #include <math.h>
 #include <stdio.h>
 int main(void)
 {
   printf("%f", ceil(9.9));
  
 }

/* 10.000000*/

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