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>

SEE ALSO

L<Math::Expr::Opp>