[Rd] Projects

[Duncan Murdoch]

On 14 Sep 2000 10:43:05 -0700, you wrote:

>Right, and it would be nice (necessary?) for testing and verification
>of the "symbolic" side of the package as well as for "drop-in" or
>"change a parameter" design functionality.  As well as being a
>starting point for the interface for the symbolicDeriv package.

I'm not sure if this is what Tony has in mind, but something I always
do when working with optimizers that take a supplied derivative is to
write a little numerical derivative routine to check that my calculus
and programming were done correctly.  Putting that into a single
function which took arguments just like the ones you pass to the
optimizer would be very convenient.

Duncan Murdoch
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