#13667: fix docs in sage/coding/code_bounds.py
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Reporter: dimpase | Owner: mvngu
Type: defect | Status: new
Priority: major | Milestone: sage-5.4
Component: documentation | Resolution:
Keywords: code bounds | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Changes (by dimpase):
* owner: was => mvngu
* component: databases => documentation
* milestone: sage-feature => sage-5.4
Old description:
> In coding/code_bounds.py there is a comment:
> {{{
> (1) Indirectly, using minimum_distance_lower_bound(n,k,F) and
> minimum_distance_upper_bound(n,k,F) (both of which which connect
> to the internet using Steven Sivek's linear_code_bound(q,n,k))
> }}}
>
> However, linear_code_bound (in databases/lincodes.py) is completely
> commented out.
> This happened more than 5 years ago:
> {{{
> $ hg blame databases/lincodes.py | grep def\ linear_code_bound
> 4858: ## def linear_code_bound(q, n, k, verbose=False):
>
> $ hg log -g -r 4858 databases/lincodes.py
> changeset: 4858:60ac2a91b36d
> parent: 4856:9c651ca8064d
> user: William Stein <[email protected]>
> date: Sat Jun 02 20:45:05 2007 -0700
> summary: doctest fixes
> }}}
>
> There are up-to-date (and much bigger) tables on
> http://www.codetables.de/
> maintained by Markus Grassl (who took over from Andries Brouwer his
> tables---
> used by {{{linear_code_bound}}}). Hooking them up needs work.
New description:
In {{{sage/coding/code_bounds.py}}} there is a comment:
{{{
(1) Indirectly, using minimum_distance_lower_bound(n,k,F) and
minimum_distance_upper_bound(n,k,F) (both of which which connect
to the internet using Steven Sivek's linear_code_bound(q,n,k))
}}}
However, linear_code_bound (in databases/lincodes.py) is completely
commented out.
This happened more than 5 years ago:
{{{
$ hg blame databases/lincodes.py | grep def\ linear_code_bound
4858: ## def linear_code_bound(q, n, k, verbose=False):
$ hg log -g -r 4858 databases/lincodes.py
changeset: 4858:60ac2a91b36d
parent: 4856:9c651ca8064d
user: William Stein <[email protected]>
date: Sat Jun 02 20:45:05 2007 -0700
summary: doctest fixes
}}}
There are up-to-date (and much bigger) tables on http://www.codetables.de/
maintained by Markus Grassl (who took over from Andries Brouwer his
tables---
used by {{{linear_code_bound}}}). They are hooked up in
{{{sage/coding/linear_code.py}}}, function
{{{best_known_linear_code_www()}}}.
So {{{sage/coding/code_bounds.py}}} should mention this, and not the
obsolete stuff.
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13667#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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