There is no need to send this twice under different subject lines. On Mon, 16 Apr 2007, enrico.foscolo2 wrote:
> Dear Partecipants to the list, > I am Enrico Foscolo, a student of the Faculty of Statistics, University of > Bologna, > and I am interested under consideration of the search of zeros of one > function. > I would want to write a code using the software R. > I have already read the book "Computing the Zeros of Analytic Functions" (P. > Kravanja and M. Van Barel, 2000) that speaks about this problem, computing a > Fortran 90 code. > Consequently, I would want to ask You if: > - already exists a R code, I presume you mean analytic functions of a complex argument. Few R packages use complex vectors, and none of those few do this to my knowledge. > - how can I recall a Fortran 90 function in R (Windows XP Operating System). This is covered in 'Writing R Extensions', section 1.2.3 in the version (2.5.0 beta) I looked at. > My aim is to write the code for complete my work about studying functions and > searching points of maximum and minimum (local and global). > Many thanks for any kind of help and for Your availability. > > Enrico Foscolo -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
