Multiple choice general knowledge science & technology

The built-in library function ceil(x) requires the header file?

  1. <ctype.h>

  2. <math.h>

  3. <stdlib.h>

  4. <time.h>

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The ceil() function rounds a floating-point number up to the nearest integer and is declared in . Don't confuse it with which handles character classification.