#9720: Add random echelonizable matrices to matrix/constructor.py
------------------------------+---------------------------------------------
Reporter: bwonderly | Owner: jason, was
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.5.3
Component: linear algebra | Keywords:
Author: Billy Wonderly | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------------+---------------------------------------------
Comment(by wdj):
Applies fine to 4.5.2.rc0.
Two extremely minor comments off the top of my head:
1. "Generate a matrix of a desired size and rank, over a desired field,
whose reduced row-echelon form has only whole values."
IMHO, "integral" sounds better than "whole".
2. It seems to me that, from the point of view of the functionality,
using base_ring = ZZ returns the same result as base_ring = QQ.
(I understand that over QQ the rref algorithm might be different than over
ZZ, but it seems to me that for the matrices you compute in the
random_echelonizable_matrix function, the rref algorithm(s) yield
the same result either way. Correct?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9720#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
