NAME

  Math::Expr::Num - Represents one number in a parsed expression tree

SYNOPSIS

  require Math::Expr::Opp;
  require Math::Expr::Var;
  require Math::Expr::Num;
  
  # To represent the expression "x+7":
  $n=new Math::Expr::Opp("+");
  $n->SetOpp(0,new Math::Expr::Var("x"));
  $n->SetOpp(1,new Math::Expr::Num(7));
  print $n->tostr . "\n";

DESCRIPTION

  Used by the Math::Expr to represent numbers.

METHODS

$n=new Math::Expr::Num($num)

  Creates a new representation of the number $num.

$n->tostr

  Returns the string representation of the number which in perl is
  the same as the number itsefle

$n->Copy

Returns a new copy of itself.

AUTHOR

  Hakan Ardo <hakan@debian.org>