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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.
bs_gradient (f, args, narg)
## 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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