Taken from debian
--- Derivative.pm+++ Derivative.pm@@ -1,8 +1,9 @@# functions for calculating derivatives of data
# $Id: Derivative.pm,v 1.1 1995/12/26 16:26:59 willijar Exp $
+=head1 NAME
- Math::Derivative - Numeric 1st and 2nd order differentiation+Math::Derivative - Numeric 1st and 2nd order differentiation=head1 SYNOPSIS