I am learning both J and GA, so glitches or not, I learn from it anyway by having to analyze it.
Thanks again! On 11 August 2016 at 00:40, Raul Miller <[email protected]> wrote: > 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 > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
