lispdoc - results for ceiling

(ceiling number &optional (divisor 1))
Function: Return the smallest integer not less than number, or number/divisor. The second returned value is the remainder.
Example:
(defun palindrome? (x)
  (let ((mid (/ (length x) 2)))
    (equal (subseq x 0 (floor mid))
           (reverse (subseq x (ceiling mid))))))
Mentioned in:
CLtL2 - 12.4. Arithmetic Operations
CLtL2 - 12.6. Type Conversions and Component Extractions on Numbers
CLtL2 - 4.8. Type Conversion Function
HyperSpec - Function FLOOR, FFLOOR, CEILING, FCEILING, TRUNCATE, FTRUNCATE, ROUND, FROUND
On Lisp - Dispatching Macro Characters
PCL - basic math
calling
 
 Mentioned in:
HyperSpec - 3.5.1.8 Errors When Calling a Next Method