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Re: Numerical Methods

From: Vivek Shanmuganathan \(95410006-BS\)
Subject: Re: Numerical Methods
Date: Fri, 28 Jan 2000 17:06:05 +0530 (IST)

What do you mean by EDO/EDP?

Octave provides two solvers for differential equations.

lsode : For ordinary differential equations (ODE) of the
        explicit form y' = f(x,y)

dassl : For differential algebraic equations (DAE) or
        implicit ODE of the form f(y', y, x) = 0

Prime (') implies derivative wrt the the dependent variable x. 

However, I use RADAU5 from a C-programmed and find it
faster, and use Octave just verify the results of my code. 


On Thu, 27 Jan 2000, Claudio Tellez wrote:

> Does anyone know about how to solve EDOs and EDPs
> numerically using Octave? For example, in matlab I usually
> work with "ode23" (Runge Kutta), but I've not found any
> similar in octave yet. 

Octave is freely available under the terms of the GNU GPL.

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