Thank you very much for your suggestions, most of them will be included in the next polymake release which is due in February. Fixed: E8: Both the comment and the help text were wrong and are fixed in our development version. There is no obstruction for E6 and E7 anymore, but quadratic extensions we...

The inhomog_var was introduced in with 2.13, thus it was missing in your coordinate labels. but without this entry the permutation $perm only contains 18 entries instead of 19 (18 coords plus right-hand side) and the matrix created by permuted_cols looses the first column but will contain a zero-col...

polymake: ERROR: Shared module compilation failed; see the error log below make: g++: Command not found make: *** [/tmp/poly23874Taaaa0013.o] Error 127 This probably means that at some point after the installation of polymake, the C++ compiler was uninstalled which is quite strange. You can try to ...

Hello Satya, the reason why this point is not in the polytope is that the coordinates are not in the order you are assuming for $v. You can check the coordinates with: polytope > print $f->COORDINATE_LABELS; inhomog_var a1 a9 a11 a13 a10 a12 a15 a8 a14 a16 a17 a2 a5 a6 a3 a7 a18 a4 One way to reorde...

Yes, it will also check whether the point satisfies the affine hull equations.

Benjamin

Hello Satya, there is an (undocumented :() method $q->contains($v) in polymake which checks whether a given point $v is contained in a polytope $q. Thus you can just iterate over the VERTICES of $p and pass them to this function. This should also work in the unbounded case. Internally this will use ...

Dear polymake users,

We have updated the forum software and added support for \(\TeX\)-MathJax in your posts.
The update should fix a few issues, e.g. the BBCode buttons.

Benjamin

PS: \[\sum_{k=1}^n k = \frac{n(n+1)}{2}\]

testing the new forum

edittest

In the meantime if you dont have access to a linux machine you can use the online version.

Benjamin

Dear kisas, First note that all core algorithms in polymake are written in C or C++, the perl shell provides an easy interface that still comes with the efficiency of the compiled code running in the background. This means that you can do: # load the lp file $pf = lp2poly("test.lp"); # pol...