[Jprogramming] ascii art

R.E. Boss r.e.boss at outlook.com
Thu Aug 13 17:01:08 UTC 2015


See http://www.jsoftware.com/jwiki/RE%20Boss/J-blog all pages which end in
"graph", they are mostly fractals.
Especially:
http://www.jsoftware.com/jwiki/RE%20Boss/J-blog/Peano (end of page)
http://www.jsoftware.com/jwiki/RE%20Boss/J-blog/betaomega
http://www.jsoftware.com/jwiki/RE%20Boss/J-blog/HC33


R.E. Boss


> -----Original Message-----
> From: programming-bounces at forums.jsoftware.com [mailto:programming-
> bounces at forums.jsoftware.com] On Behalf Of Raul Miller
> Sent: donderdag 13 augustus 2015 18:01
> To: Programming forum <programming at jsoftware.com>
> Cc: Andrew Nikitin <nsg21 at hotmail.com>
> Subject: Re: [Jprogramming] ascii art
> 
> I was surprised to find that neither Fractals Visualizations and J nor
> rosettacode.org currently has an implementation of hilbert curves.
> 
> (I was also bemused to note that the google books entry for the
> Fractals book falsely claims that there's no ebook for it.)
> 
> However, the forums do have some hilbert curve implementations. For
> example, 3d hilbert curves (see links at
> http://www.jsoftware.com/pipermail/programming/2007-
> March/005626.html)
> and also http://www.jsoftware.com/pipermail/general/2004-
> September/018092.html
> or perhaps http://www.jsoftware.com/pipermail/general/2004-
> September/018068.html
> 
> But you'll need to change y. to y in some of the definitions, there,
> to get them to work. (Or I guess you can use 9!:49).
> 
> --
> Raul
> 
> 
> 
> 
> Raul
> 
> On Thu, Aug 13, 2015 at 10:15 AM, PMA <PeterArmstrong at aya.yale.edu>
> wrote:
> > Got a Hilbert curve?
> >
> >
> > Andrew Nikitin wrote:
> >>
> >> quad tree:
> >>
> >> (2 2$<@])^:4 i.0 0
> >>
> >> Sierpinki square:
> >>
> >> (<@[ (<1;1)} 3 3$<@])^:3~ i.0 0
> >
> >
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