[sage-support] Re: Memory

On Tuesday, 23 April 2013 00:00:33 UTC+8, Volker Braun wrote: > > The first question is, are you actually running out of ram? The garbage > collector seems to have triggered full collections at the 4gb mark, and > memory fragmentation might have left you with 900mb of address space that > is m

[sage-support] Issuing SQL queries from within Sage

Cheers Gordon -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org

[sage-support] Graph orientations output convention inconsistent

My suggestion is that the output from "acyclic_orientations" should be changed so that it returns digraphs with unlabelled edges. In this fashion, the orientation information is contained directly in the digraph and the output is then consistent with "orientations()"

[sage-support] Differential graded algebras with homological indexing

According to the documentation for commutative_dga, a differential graded algebra is graded by integers. However, if I attempt to give a generator negative degree, I get an error. For example, A = GradedCommutativeAlgebra(QQ, 'x, y', degrees=(-1, -1)) returns the error ValueError: the degree