Hi all: This is kind of a newbie question, as I'm not an expert on simplicial complexes. It's also a minor technical issue on the documentation, not the code.
I'm trying to debug some code of mine and, on reading the documentation for chain_complex on http://doc.sagemath.org/html/en/reference/homology/sage/homology/simplicial_complex.html, found this: "The rows and columns of the boundary matrices are indexed by the lists given by the n_cells() method, which by default are sorted." On the other hand, the documentation for n_cells has this statement: "Sort the list if the argument sort is True. If sort is None (the default), then sort depending on the value of the sort_facets parameter (from the initialization of the simplicial complex)." However, the sort_facets parameter (unless I'm mistaken) does not sort the individual faces but rather sorts the vertices in each facet. In my code, I expected the faces of a fixed dimension to be returned as a deterministic sorted list not a set whose ordering could be random. Now, it *does* seem as though the faces are sorted. It's just that, to me, the documentation of n_cells doesn't make that clear. I'm asking if I'm mis-understanding something here or not. - David Joyner -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
