On Friday 16 Apr 2010 11:10:20 P Kishor wrote: > On Fri, Apr 16, 2010 at 2:50 AM, Matthew Kenworthy > > <[email protected]> wrote: > > rescale2d is what you're looking for: > Wow! Seriously, I didn't even expect this to be a function! Very many > thanks. > > Two thoughts occur to me -- > > 1. How would I have even begun to discover rescale2d? > > 2. You know what PDL needs? It needs a book very much like either the > "Perl Cookbook" (call this the "PDL Cookbook") or even better, it > needs an analog of the wolf book > <http://oreilly.com/catalog/9781565923980>. I would have hours and > hours of fun reading if I had a "Mastering algorithms with PDL". One > (or more) of you brainiacs should seriously consider writing one. I > will happily put down my advance payment. >
I think a PDL Cookbook would be a great idea. PDL and similar numerical packages (e.g: Matlab, SciPy/NumPy/etc., GNU octave, Scilab and many others I forgot) have many dark corners. Despite the fact that back when I studied Elec. Eng. in the university, I've written much better Matlab than many of my fellow students who just used explicit loops, I still feel I'm missing a lot and often resort to use loop instead of more succinct (and likely faster) code. That put aside, assuming some people will undertake the mission to write such a book, I would heavily recommend for making a copy of it available online for viewing, linking, searching using search engines, download, comments and scrutiny. As I noted here: http://www.shlomifish.org/philosophy/philosophy/closed-books-are-so-19th- century/ (short URL - http://xrl.us/bewvc7 ). I should note that if someone is going to write a manuscript for that he'll have a hard time convincing a publication to publish it because PDL is far too niche, and has a very small market share (unfortunately), and so one cannot expect a lot of sales, in any case. We can start an effort to do a book like this on a wiki such as: http://sourceforge.net/apps/mediawiki/pdl/index.php?title=Main_Page (Though the URL is not very friendly.) I wouldn't mind contributing some tricks I've experimented with (I have a Mandelbrot Set program in Matlab that I can translate to PDL, for example), but the usual caveat is that I have many other things I'm doing at the moment. Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ Freecell Solver - http://fc-solve.berlios.de/ Deletionists delete Wikipedia articles that they consider lame. Chuck Norris deletes deletionists whom he considers lame. Please reply to list if it's a mailing list post - http://shlom.in/reply . _______________________________________________ Perldl mailing list [email protected] http://mailman.jach.hawaii.edu/mailman/listinfo/perldl
