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Man Pages


Manual Reference Pages  -  MATH::EXPR::OPPERATIONDB (3)

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NAME



  Math::Expr::OpperationDB - A db of basic opperands properties



CONTENTS

SYNOPSIS



  require Math::Expr::OpperationDB;
  $db=new Math::Expr::OpperationDB($file);



DESCRIPTION



  This is a database containing info about the different opperations
  (eg +,  -, *, ...). Each opperation is represented by a regexp
  mathing a type specifikation. That way Real*Real wont be the same
  opperation as Matrix*Matrix even though the same operation character
  is used.

  The data stored for each operation is the return type of the
  operation and whatever this operation is kommutativ or assosiative.

  Currently the data is hardcoded into the code, but that is about to
  chnage.



METHODS

CW$db=new Math::Expr::OpperationDB;



  Creates a new db.



CW$db->Find($t)



  Tries all the type regexps in the db on $t and if one matches that
  post is returned.



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perl v5.20.3 EXPR::OPPERATIONDB (3) 1998-08-24

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