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operatormore about operator


  3  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Operator  \Op"er*a`tor\,  n.  [L.] 
  1.  One  who  or  that  which  operates  or  produces  an  effect. 
  2.  (Surg.)  One  who  performs  some  act  upon  the  human  body  by 
  means  of  the  hand,  or  with  instruments. 
  3.  A  dealer  in  stocks  or  any  commodity  for  speculative 
  purposes;  a  speculator.  [Brokers'  Cant] 
  4.  (Math.)  The  symbol  that  expresses  the  operation  to  be 
  performed;  --  called  also  {facient}. 
  From  WordNet  r  1.6  [wn]: 
  n  1:  (mathematics)  a  symbol  that  represents  a  function  from 
  functions  to  functions;  "the  integral  operator" 
  2:  an  agent  that  operates  some  apparatus  or  machine;  "the 
  operator  of  the  switchboard"  [syn:  {manipulator}] 
  3:  someone  who  owns  or  operates  a  business;  "who  is  the 
  operator  of  this  franchise?" 
  4:  (informal)  a  shrewd  or  unscrupulous  person  who  knows  how  to 
  circumvent  difficulties  [syn:  {hustler},  {wheeler  dealer}] 
  5:  a  speculator  who  trades  aggressively  on  stock  or  commodity 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
    A  symbol  used  as  a  {function},  with  {infix 
  syntax}  if  it  has  two  arguments  (e.g.  "+")  or  {prefix  syntax}  if 
  it  has  only  one  (e.g.  {Boolean}  NOT).  Many  languages  use 
  operators  for  built-in  functions  such  as  arithmetic  and  logic. 

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