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Re: Fw: Derivate
From: |
Ben Sapp |
Subject: |
Re: Fw: Derivate |
Date: |
Fri, 12 Apr 2002 08:42:39 -0600 |
Hi Oscar,
You can do this with the development version of Octave if you have
GiNaC(www.ginac.de) installed and then you get the
octave-forge(octave.sourceforge.net) package and install it. It will detect
GiNaC and install the symbolic toolbox. To take the derivative of the
sin(x) would look like this:
address@hidden ben]$ octave
GNU Octave, version 2.1.35 (i686-pc-linux-gnu).
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.
*** This is a development version of Octave. Development releases
*** are provided for people who want to help test, debug, and improve
*** Octave.
***
*** If you want a stable, well-tested version of Octave, you should be
*** using one of the stable releases (when this development release
*** was made, the latest stable version was 2.0.16).
octave:1> symbols
octave:2> x = sym("x")
x =
x
octave:3> a = Sin(x)
a =
sin(x)
octave:4> differentiate(a,x)
ans =
cos(x)
octave:5>
Good luck and I hope this helps.
Ben.
On Thursday 11 April 2002 10:50 pm, Oscar Vasquez wrote:
> ----- Original Message -----
> From: Oscar Vasquez
> To: address@hidden
> Sent: Thursday, April 11, 2002 10:45 PM
> Subject: Derivate
>
>
> Hello:
> I just want to know if exist a funtion to deriv an expresion, for
> example: I do:
> f = "sin(x);"
> exist something like d(f)/dx???
>
> Help me please...
--
Ben Sapp Los Alamos National Laboratory
email: <mailto:address@hidden> Phone: (505)667-3277
Fax: (505)665-7920 URL: http://www.neutrino.lanl.gov/
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