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## Re: Derivative function

 From: Etienne Grossmann Subject: Re: Derivative function Date: Wed, 19 Feb 2003 15:28:18 +0000 User-agent: Mutt/1.3.28i

```  Hello,

for numerical differentiation, there are the following functions in
octave-forge :

deriv (f,x0[,h,O,N])

## 1st, 2nd, 3rd or 4th order derivative of a function, computed
## using 2nd or 4th order method.

## 1st Derivative of f wrt the narg'th argument.

cdiff (f, ...)

## Return code that defines a function that computes the 1st
## derivative of f.

Hth,

Etienne

On Wed, Feb 19, 2003 at 03:37:56PM +0100, Ricardo Cervera wrote:
#       Hello.
#
#       I wanted to know if it is possible to get the derivative function of a
# function given, using Octave. I mean, something like:
#
# function y = f(x)
# y = sin(x);
# endfunction
#
#       And what I am looking for is f'(x), for example cos(x).
#
#
#       Thanks a lot.
--
Etienne Grossmann ------ http://www.isr.ist.utl.pt/~etienne

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