Ceiling Function

It returns the smallest integer (represented as a floating-point value) not less than num.

On a number line , this means the right integer value for the given number .

Syntax:

float ceilf(float num);

double ceil(double num);

long double ceill(long double num);

Example:

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

  int main()
  {

    printf("%f", ceil(12.4));

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

    printf("%f", ceil(0.9));

    printf("%f", ceil(-1.9));

 return 0;
  }

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