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by joswig
09 Jun 2011, 17:20
Forum: Installing polymake
Topic: Compilation failure on Arch Linux
Replies: 9
Views: 13246

Re: Compilation failure on Arch Linux

..., I've gcc 4.6.0 and perl 5.14.0 installed. Seems that not only you have a very new C++ compiler (see Benjamin's patch above), but you also got a very fresh Perl. Congratulations, you are surely the first to try this combination. I am not even sure if all Perl modules that we rely on actually wo...
by joswig
09 Jun 2011, 09:38
Forum: Installing polymake
Topic: Problems with the installation under Ubuntu 11.04
Replies: 24
Views: 34195

Re: Problems with the installation under Ubuntu 11.04

I had exactly the same problem under Kubuntu Natty and using g++ 4.4 did fix the problem. More precisely, I changed the symbolic links in /usr/bin to the older version , i.e. did a $ rm /usr/bin/g++ $ ln -s /usr/bin/g++-4.4 /usr/bin/g++ This seems a bit drastic to me. It is never a good idea to get...
by joswig
08 Jun 2011, 15:08
Forum: Installing polymake
Topic: Problems with the installation under Ubuntu 11.04
Replies: 24
Views: 34195

Re: Problems with the installation under Ubuntu 11.04

It does not find the nauty headers. Please check include directories. For instance, in my installation the correct path (relative to the svn top) is

Code: Select all

build.x86_64/external/nauty/nauty.h
Actually, it looks like a weird problem; at least, I did not encounter this before.
by joswig
03 Jun 2011, 14:25
Forum: Installing polymake
Topic: Problems with the installation under Ubuntu 11.04
Replies: 24
Views: 34195

Re: Problems with the installation under Ubuntu 11.04

OK, maybe my first comment was too quick. Please restart from scratch (deleting all files produced so far) with "make distclean; make configure CXXOPT=-O1". If there is still a problem please also send the call to gcc which causes the problem (that is, not only the final error message but ...
by joswig
26 May 2011, 20:57
Forum: Helpdesk
Topic: properties insufficient to compute 'INEQUALITIES'?
Replies: 2
Views: 4904

Re: properties insufficient to compute 'INEQUALITIES'?

You probably want to ask for FACETS anyway. INEQUALITIES are for input only.
by joswig
26 May 2011, 17:54
Forum: Helpdesk
Topic: Constructing half integer polytopes
Replies: 3
Views: 6638

Re: Constructing half integer polytopes

Probably you want to classify up to linear or affine automorphisms (which is almost the same). This can be translated into computing automorphisms of certain colored graphs, see Section 3.2 in the following paper: Bremner, David(3-NB-FC); Dutour Sikiric, Mathieu(CT-IRBO-SOC); Schürmann, Achill(D-MAG...
by joswig
22 May 2011, 12:15
Forum: Helpdesk
Topic: Segmentation fault and 2.9.9 vs. 2.9.10
Replies: 3
Views: 5577

Re: Segmentation fault and 2.9.9 vs. 2.9.10

Let me add a remark: It is a global design decision that the polymake objects are only functional within their specification. This means a segfault is always possible if you do something wrong (like here). One could argue that this is inconvenient. However, math says that it is virtually impossible ...
by joswig
18 May 2011, 09:39
Forum: Helpdesk
Topic: Visualizing Cones
Replies: 1
Views: 4225

Re: Visualizing Cones

Listing the vertex coordinates (e.g., of an associahedron) is accomplished by print associahedron(3)->VERTICES; Did you read our tutorials? Please look at http://www.polymake.org/doku.php/tutorial/coordinates . Visualizing 3-dimensional unbounded polyhedra works like for ordinary polytopes. However,...
by joswig
13 May 2011, 09:53
Forum: Helpdesk
Topic: tutorial on LP
Replies: 10
Views: 12701

Re: tutorial on LP

If I may add: it's worth to try the shell version (where you would have to replace "." by "->", that is, for instance, LP->MAXIMAL_VALUE) since there you have tab-completion to tell you the properties available, even with the correct spelling. ;-)
by joswig
12 May 2011, 13:31
Forum: Helpdesk
Topic: tutorial on LP
Replies: 10
Views: 12701

Re: tutorial on LP

... and, of course, the polymake version, the operating system etc.

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