Announcing the release of Perl Module Math::Derivative Version 0.01
Uploaded to CPAN archives under my home directory.

Math::Derivative - Numeric 1st and 2nd order differentiation

This Perl package exports functions for performing numerical first
 and second order differentiation on data. They functions take
references to two arrays containing the x and y ordinates of the data
and return an array of the 1st or 2nd derivative at the given x
ordinates. The 2nd derivative may optionally be given values to use
for the first dervivative at the start and end points of the data -
otherwiswe 'natural' values are used.

Module Entry

6) Data Types and Data Type Utilities (see also Database Interfaces)

Name           DSLI  Description                                  Info
-----------    ----  -------------------------------------------- -----
Math::
::Derivative   Rdpr  1st and 2nd order differentiation of data    JARW

  JARW John A.R. Williams <J.A.R.Williams@aston.ac.uk>