Hi Andres, good to hear from you. :-) On 7/6/05, Andres Rudqvist <[EMAIL PROTECTED]> wrote: > Hi Kohei, > > Thanks very much, for the description of the current status of your > work, i've studided it carefully. I haven't tested it right now, but > i'll comunicate you any doubt in the process.
Please feel free to ask me anytime. > Quite out of the initial outline of the proposed work, i'm working in > implementig newthon for one function, this with the purpose of write > and test an initial version of the module that handles expressions. I > must be able to derivate and evaluate arbitry expression. I think it > will be a good point to start the work on the proposed methods. I think so too. It may also help to know that there are two python scripts under numeric/python_code named "numerical.py" and "nlp_bfgs_newton.py". The "numerical.py" file contains an implementation of first-order differentiation of an arbitrary function, while the "nlp_bfgs_newton.py" contains a prototype of Quasi-Newton BFGS method for non-linear models. The differentiation algorithm came out of a book published almost 30 years ago, so there may be a better one available today. But at least that is something that you can use to get things moving. > > In order to post my work, i'll post it on sourceforge, the page of the > project is : > http://sourceforge.net/projects/solver-calc/ > Even it doesn't have very much for now, i expect it have more to see > in the course of the week. Nice. Thanks for setting it up. There is one thing, though. I've noticed that you have picked the GPL license for this solver code. This is technically allowed, but my original code is licensed under SISSL, and for the purpose of the Google Summer of Code, I think it would be more appropriate if you register this project under the SISSL license. I've taken a look at the site, and the SISSL license appears to be availble in the list of licenses to choose from on SourceForge. So, let's go ahead and have it taken care of before we move on further. Thanks for letting us know your progress. We'll be in touch. Kohei --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
