Function: ceil
Section: conversions
C-Name: gceil
Prototype: G
Help: ceil(x): ceiling of x=smallest integer>=x
Description: 
 (small):small:parens   $1
 (int):int:copy:parens  $1
 (real):int             ceilr($1)
 (mp):int               mpceil($1)
 (gen):gen              gceil($1)

