Well... yes, and no. I did use google to find that page. But my search was something like site:rosettacode.org clifford algebra.
More specifically, I think I wrote that entry (or an earlier version... I have not checked to see if it has been replaced, or glitched. As with anything you find on the internet, you should test it for accuracy before doing much with it). And, I sort of remembered having done so, so I used google to pinpoint the page. I also contributed to firming up the explanations (which means that my first attempts at implementation, and at contributing to the discussion, annoyed the task proposer so much that time got spent on rephrasing the task description to be understandable). So... now you know... Thanks, -- Raul On Wed, Aug 10, 2016 at 11:23 AM, Robert Herman <[email protected]> wrote: > Raul, > > Thank you so much! Please tell me this wasn't from a Google, because I > didn't find this gem. > I also never looked at this section of rosettacode.org before. > > Yes, it appears to be about what I asked; I need to really look over the > discussion and code. > > My interest is in recreating in J code similar to the GA Sandbox code from > the 2007 book, "Geometric Algebra for Computer Science". > > http://www.geometricalgebra.net/sandbox.html > > I have been struggling to teach myself GA for years for physics. I haven't > touched Hestenes Geometric Calculus yet. > > In the meantime, I figured it might help my understanding of GA and J too, > to code a bit of GA here and there. I always get the math better when I > need to code it. > > Thanks again. > > Rob > > > > On 10 August 2016 at 19:48, Raul Miller <[email protected]> wrote: > >> Do you mean like this? http://rosettacode.org/wiki/Geometric_algebra#J >> >> I think it is doable, but without more context about how you are going >> to be using it, I am not sure what issues you will run into. >> >> I hope this helps? >> >> Thanks, >> >> -- >> Raul >> >> >> On Tue, Aug 9, 2016 at 10:52 PM, Robert Herman <[email protected]> >> wrote: >> > I would appreciate any feedback on whether looking into performing some >> > Clifford Algebra/Geometric Algebra is very suitable in J from those who >> are >> > more mathematically minded and familiar with J than I am. >> > >> > GA is mainly matrices and involves complex numbers, which J seems to fit >> > just right, but I am looking into duplicating in J what already exists in >> > CluCalc to some degree [1]. >> > Mainly to learn J better and keep up with my GA self-studies. >> > >> > I realize the visualization portion would have to be done later, or with >> > OpenGL in J. I am going to attempt to just formulate some basic GA in J >> for >> > now. >> > >> > Thanks! >> > >> > Rob >> > >> > [1] http://www.clucalc.info/ >> > ---------------------------------------------------------------------- >> > For information about J forums see http://www.jsoftware.com/forums.htm >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
