# C ceil Function

The C ceil function is one of the Math Functions, used to return the smallest integer value, which is greater than or equal to a given number or a specified expression. The syntax of the ceil is

`double ceil(double number);`

## C ceil Function Example

This math Function allows you to find the smallest integer value, which is greater than or equal to a given number. In this program, We are going to find the ceiling value and display the output.

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

int main()
{
printf("\n The Ceil Value of 0.75    = %.2f ", ceil(0.75));
printf("\n The Ceil Value of 12.25   = %.2f ", ceil(12.25));
printf("\n The Ceil Value of 152.50  = %.2f ", ceil(152.50));

printf("\n The Ceil Value of -12.36  = %.2f ", ceil(-12.36));
printf("\n The Ceil Value of -27.82  = %.2f ", ceil(-27.32));
printf("\n The Ceil Value of -90.50  = %.2f ", ceil(-90.50));

return 0;
}```

## math ceil Example 2

In this C Programming example, we are allowing the user to enter their own value. Next, the program uses the ceil function to find the closest numbers.

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

int main()
{
float number, ceilValue;

printf(" Please Enter any Numeric :  ");
scanf("%f", &number);

ceilValue = ceil(number);

printf("\n The Ceiling of %.2f = %.4f ", number, ceilValue);

return 0;
}```
`````` Please Enter any Numeric :  256.09

The Ceiling of 256.09 = 257.0000 ``````