math::derivative(3pm) [debian man page]

Derivative(3pm) 					User Contributed Perl Documentation					   Derivative(3pm)

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.

HISTORY

       $Log: Derivative.pm,v $ Revision 1.1  1995/12/26 16:26:59  willijar Initial revision

BUGS

       Let me know.

AUTHOR

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

perl v5.12.3							    2011-06-14							   Derivative(3pm)

AIRY(3) 						User Contributed Perl Documentation						   AIRY(3)

NAME

       PDL::GSLSF::AIRY - PDL interface to GSL Special Functions

DESCRIPTION

       This is an interface to the Special Function package present in the GNU Scientific Library.

SYNOPSIS

Functions
FUNCTIONS

   gsl_sf_airy_Ai
	 Signature: (double x(); double [o]y(); double [o]e())

       Airy Function Ai(x).

       gsl_sf_airy_Ai does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any of the input
       piddles.

   gsl_sf_airy_Bi
	 Signature: (double x(); double [o]y(); double [o]e())

       Airy Function Bi(x).

       gsl_sf_airy_Bi does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any of the input
       piddles.

   gsl_sf_airy_Ai_scaled
	 Signature: (double x(); double [o]y(); double [o]e())

       Scaled Airy Function Ai(x). Ai(x) for x < 0  and exp(+2/3 x^{3/2}) Ai(x) for  x > 0.

       gsl_sf_airy_Ai_scaled does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any of the
       input piddles.

   gsl_sf_airy_Bi_scaled
	 Signature: (double x(); double [o]y(); double [o]e())

       Scaled Airy Function Bi(x). Bi(x) for x < 0  and exp(+2/3 x^{3/2}) Bi(x) for  x > 0.

       gsl_sf_airy_Bi_scaled does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any of the
       input piddles.

   gsl_sf_airy_Ai_deriv
	 Signature: (double x(); double [o]y(); double [o]e())

       Derivative Airy Function Ai`(x).

       gsl_sf_airy_Ai_deriv does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any of the
       input piddles.

   gsl_sf_airy_Bi_deriv
	 Signature: (double x(); double [o]y(); double [o]e())

       Derivative Airy Function Bi`(x).

       gsl_sf_airy_Bi_deriv does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any of the
       input piddles.

   gsl_sf_airy_Ai_deriv_scaled
	 Signature: (double x(); double [o]y(); double [o]e())

       Derivative Scaled Airy Function Ai(x). Ai`(x) for x < 0	and exp(+2/3 x^{3/2}) Ai`(x) for  x > 0.

       gsl_sf_airy_Ai_deriv_scaled does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any
       of the input piddles.

   gsl_sf_airy_Bi_deriv_scaled
	 Signature: (double x(); double [o]y(); double [o]e())

       Derivative Scaled Airy Function Bi(x). Bi`(x) for x < 0	and exp(+2/3 x^{3/2}) Bi`(x) for  x > 0.

       gsl_sf_airy_Bi_deriv_scaled does not process bad values.  It will set the bad-value flag of all output piddles if the flag is set for any
       of the input piddles.

AUTHOR

       This file copyright (C) 1999 Christian Pellegrin <chri@infis.univ.trieste.it> All rights reserved. There is no warranty. You are allowed to
       redistribute this software / documentation under certain conditions. For details, see the file COPYING in the PDL distribution. If this
       file is separated from the PDL distribution, the copyright notice should be included in the file.

       The GSL SF modules were written by G. Jungman.

perl v5.12.1							    2010-07-05								   AIRY(3)