NAME

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

SYNOPSIS

use Math::Derivative qw(Derivative1 Derivative2);

@dydx = Derivative1(\@x, \@y);
@d2ydx2 = Derivative2(\@x, \@y);
@d2ydx2 = Derivative2(\@x, \@y, $yp0, $ypn);

DESCRIPTION

This Perl package exports functions for performing numerical first (Derivative1) and second Derivative2) order differentiation on vectors of data. They both 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. Derivative2 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.

AUTHOR

John A.R. Williams J.A.R.Williams@aston.ac.uk John M. Gamble jgamble@cpan.org (current maintainer)