Hello Udo,
thank you very much for your help. I will check all this the next days.
Best wishes
Stephan
Zitat von Udo und Susanne Krause <su.krause@XXXXXXX.ch>:
Hello again,
if loading the precomputed data as described into the KnotTheory
directory, the second example from the manual fails already
In[7]:= Length /@ {AllKnots[{0, 16}], AllLinks[{2, 12}]}
Out[7]= {1701936, 5700}
In[8]:= Show[DrawPD[Knot[13, NonAlternating, 5016], {Gap -> 0.025}]]
During evaluation of In[8]:= KnotTheory::loading: Loading
precomputed data in KnotTheory/13N.dts.
During evaluation of In[8]:= Import::nffil: File not found during Import.
this is because of the picture in the attachment; put the contents
of the deeper KnotTheory directory to the upper KnotTheory directory
and draw
In[9]:= Show[DrawPD[Knot[13, NonAlternating, 5016], {Gap -> 0.025}]]
During evaluation of In[9]:= KnotTheory::loading: Loading
precomputed data in KnotTheory/13N.dts.
During evaluation of In[9]:= KnotTheory::credits: The GaussCode to
PD conversion was written by Siddarth Sankaran at the University of
Toronto in the summer of 2005.
<snip>
Regards
Udo.
On Sun, 22 Jul 2018 18:23:21 +0200, Udo und Susanne Krause via demug
<demug@XXXXXXX.ch> wrote:
Hello Stephan,
this still loads into Mathematica
In[6]:= SetDirectory[FileNameJoin[{NotebookDirectory[], "test", "others"}]]
Out[6]= "N:\\Udo\\Abt_N\\test\\others"
In[7]:= << KnotTheory`
During evaluation of In[7]:= Loading KnotTheory` version of
September 6, 2014, 13:37:37.2841.
Read more at http://katlas.org/wiki/KnotTheory.
In[8]:= $Version
Out[8]= "10.4.1 for Microsoft Windows (64-bit) (April 11, 2016)"
I read a bit around on http://katlas.org/wiki/Setup and it says
-----------------------------------------------------------------------
Notes
Precomputed Data
KnotTheory` comes with a certain amount of precomputed data which
is loaded "on demand" just when it is needed. When a precomputed
data file is read by KnotTheory`, a notification message is
displayed. To prevent these messages from appearing execute the
command Off[KnotTheory::loading].
Further Data Files
To access the Hoste-Thistlethwaite enumeration of knots with 12 to
16 crossings (see Naming and Enumeration), also download either the
file DTCodes4Knots12To16.tar.gz or the file DTCodes4Knots12To16.zip
(about 9MB each), and unpack either one into the directory
KnotTheory/.
-----------------------------------------------------------------------
seemingly there are data collections with 12 to 16 crossing given.
Have you inspected them,
where did you run into problems, what did you try already?
Have you seen
http://reference.wolfram.com/language/ref/KnotData.html
http://reference.wolfram.com/language/note/KnotDataSourceInformation.html
http://reference.wolfram.com/language/ref/interpreter/ComputedKnot.html
before running up a steep learning curve for love it would be good
to have a specific point to start with.
Best regards
Udo.
On Mon, 16 Jul 2018 13:21:33 +0200, Stephan Rosebrock via demug
<demug@XXXXXXX.ch> wrote:
Dear All,
How can I write a Mathematica file which uses the Mathematica
package "knottheory" and creates a list of many (as many as
possible) different non-alternating knots and links (rather
minimal knot- and linkprojections) with at least 12 crossings
(better: 16 or 18 crossings or even more) which satisfy: Each
component of a link has as many positive crossings as negative
crossings.
Best regards,
Stephan Rosebrock
*********************************************************
Dr. Stephan Rosebrock
Paedagogische Hochschule Karlsruhe
Bismarckstr. 10
76133 Karlsruhe
Deutschland / Germany
e-mail: rosebrock@XXXXXXX.de
Homepage: http://www.rosebrock.ph-karlsruhe.de/
Tel: 0721-925-4275
Fax: 0721-925-4249
*********************************************************
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*********************************************************
Dr. Stephan Rosebrock
Paedagogische Hochschule Karlsruhe
Bismarckstr. 10
76133 Karlsruhe
Deutschland / Germany
e-mail: rosebrock@XXXXXXX.de
Homepage: http://www.rosebrock.ph-karlsruhe.de/
Tel: 0721-925-4275
Fax: 0721-925-4249
*********************************************************
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http://www.mathematica.ch/mailman/listinfo/demug
Archiv: http://www.mathematica.ch/archiv.html