From help-octave-request at bevo dot che dot wisc dot edu  Wed Jan 10 10:24:06 2001
Subject: Dormand-Prince pair in ode45, an RK ordinary differnential equation solver
From: Marc Compere <CompereM at asme dot org>
To: help-octave at bevo dot che dot wisc dot edu
Date: Wed, 10 Jan 2001 10:24:04 -0600

Octave users,

         I've recently modified ode45.m to use the Dormand-Prince coefficients in it's 
Runge-Kutta formulation.  ode45 is an ordinary differnetial equation (ODE) 
solver similar in functionality to Matlab's ode45, however it does not have 
all the features of their ode45.

	An RK method using the Dormand-Prince coefficients is computationally more 
efficient than Fehlberg's classic 4(5)-pair coefficients.  The new ode45.m 
along with ode23, ode78, rk2fixed,  rk4fixed, and rk8fixed can all be found 
at:
http://marc.me.utexas.edu/tmp/octave_ode_solvers/ode_v1.10.tar.gz

or individually in:
http://marc.me.utexas.edu/tmp/octave_ode_solvers/ode_v1.10/

or on the octave-sources list at:
http://www.octave.org/mailing-lists/octave-sources/2001/3

Best regards,
Marc
-- 
_________________________________________________
 Marc Compere, The University of Texas at Austin
 CompereM at asme dot org, (512)471-7347,   <><
 http://nerdlab.me.utexas.edu/~compere
_________________________________________________



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