pl

Function: +_
Help: +_: copy and return its argument
Section: symbolic_operators
Description:
 (small):small:parens                      $1
 (int):int:parens:copy                     $1
 (real):real:parens:copy                   $1
 (mp):mp:parens:copy                       $1
 (gen):gen:parens:copy                     $1