What happened to http://data.oreilly.com/knots

Knot-related Computing
1

Hello All,
Does anyone know what happened to http://data.oreilly.com/knots? I used this site to return the sting run algorithm and left/right side expansions for casa/sobre coded knots. If I remember well, the page was maintained by Tim Allwine (owner? of data.oreilly.com/jallwine/knots); the latter page offers more coding options (OOUU, OUUO, et al.) of course, but doesn’t provide the left/right expansion dimensions.

Please reply if you know what has happened to this resource, or if you know of a similar resource that I might use instead.

Regards and Happy Knotting,
J.S.Sandler

2

Hi J.S.

I have this link to Mr Allwine’s Turks head online program. http://data.oreilly.com/jallwine/knots/

I verified that it is working.
Hope this helps you.

SS

3

I am able to reach that site without problems. Thanks. :wink: It’s the other site I’m looking for. http://data.oreilly.com/knots. It was helpful in showing the next expansions from a base TH.

Thank you and Happy Tying,
J.S.Sandler

4

We moved the server and didn’t get all the code moved to the new server. Also this was a research project that I started many years ago and wasn’t really meant for public consumption. That said I found I like this type of format much better. I know longer need pins or tubes to tie any of the knots that are doable in hand this type of out put gets my head right when tying a particular knot. For those who never say this output here is a 12 x 5 knot.

12 x 5
p = 12, b = 5, n = 2, r = 2, v = 3, m = 1, delta = 2
when (mb)+1 % v → 0
then
(mb)+1 / v = delta

right side expansion: 26 x 11
left side expansion: 22 x 9
History:

Start with:
2 x 1 with a left side expansion.
12 x 5

CBN: 0 2 4 1 3

   2   4   1   3   0   2   4   1   3   0   2 
   U   O   U   O   U   O   U   O   U   O   U 
   O   U   O   U   O   U   O   U   O   U   O 
   2   0   3   1   4   2   0   3   1   4   2 


[ 1]( ) --> pin 1 Free run to pin 2
[ 2](0) <-- pin 2 O,U pin 3
[ 3](0) --> pin 3 U,O pin 4
[ 4](1) <-- pin 4 O2,U2 pin 5
[ 5](1) --> pin 5 U2,O2 pin 1
[ 6](2) <-- pin 1 O3,U3,O pin 2
[ 7](2) --> pin 2 U3,O3,U pin 3
[ 8](3) <-- pin 3 O2,U,O,U2,O,U,O pin 4
[ 9](3) --> pin 4 U2,O,U,O2,U,O,U pin 5
[10](4) <-- pin 5 O,U,O,U,O,U,O,U,O,U,O pin 1

Overs: 28
Unders: 27

When I get the site up or moved etc I’ll let everyone know.

-Tim

5

Pretty sure this is the same thing. http://freakinsweetapps.com/knots/knotgrid/advanced.html