Re: Differentiation

[Michael Creel]

Hi, numgradient, which is in Octave Forge, will do this for you. Cheers, M.

octave:1> x = rand(3,1)
x =

  0.62400
  0.49499
  0.81590

octave:2> function y = f(x)
> y = sin(x);
> endfunction
octave:3> g = numgradient("f",{x})
g =

  0.81155  0.00000  0.00000
  0.00000  0.87997  0.00000
  0.00000  0.00000  0.68521

octave:4>
On Monday 19 April 2004 17:52, Subhradip Ghosh wrote:
> Hi,
> I would like to know how to do the numerical differentiation of a function
> in octave.
>
> For my case, I have a matrix A, dependent on the variable x. I would like
> to get d/dx(A(x)) for aome value of x.
>
> Is it possible in octave?
>
> Thanks in advance.
>
> Subhradip
>
>
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