Re: Numerical Differentiation
- To: mathgroup at smc.vnet.net
- Subject: [mg4321] Re: Numerical Differentiation
- From: Mark James <mrj at cs.usyd.edu.au>
- Date: Tue, 9 Jul 1996 00:50:29 -0400
- Organization: The University of Sydney
- Sender: owner-wri-mathgroup at wolfram.com
Russell Brunelle wrote: > I have needed to perform numerical differentiation as well. The following > function, which finds the derivative with respect to f[t] at point t0 is > the best I could do. > [ Function emulating differentiation by using small deltas deleted ] Thanks Russell, I was using a method similar to this, but I wanted an exact/stable/publishable(!) method. I just discovered there is a numerical differentiation function (ND[f[x], x, x0]) in the standard packages. It is available under NumericalMath`Nlimit`, so is not listed in the index of the package guide. It works, but is slower than the method we have both been using. -- Mark James | EMAIL : mrj at cs.usyd.edu.au | Basser Department of Computer Science, F09 | PHONE : +61-2-351-3423 | The University of Sydney NSW 2006 AUSTRALIA | FAX : +61-2-351-3838 | ==== [MESSAGE SEPARATOR] ====