Returns the smallest integer greater to or equal to f.
// Prints 10
Debug.Log(Mathf.Ceil(10.0));
// Prints 11
Debug.Log(Mathf.Ceil(10.2));
// Prints 11
Debug.Log(Mathf.Ceil(10.7));
// Prints -10
Debug.Log(Mathf.Ceil(-10.0));
// Prints -10
Debug.Log(Mathf.Ceil(-10.2));
// Prints -10
Debug.Log(Mathf.Ceil(-10.7));