#19133: Three Witt-based strongly regular graphs
-------------------------+-------------------------------------------------
Reporter: | Owner:
ncohen | Status: needs_work
Type: | Milestone: sage-6.9
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers: Dima Pasechnik
theory | Work issues:
Keywords: | Commit:
Authors: | 302e6bcfe8581491033aebbae7fcb7aae42a55b9
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
public/19133 |
Dependencies: |
-------------------------+-------------------------------------------------
Changes (by vbraun):
* status: positive_review => needs_work
Comment:
{{{
**********************************************************************
File "src/sage/graphs/strongly_regular_db.pyx", line 783, in
sage.graphs.strongly_regular_db.SRG_253_140_87_65
Failed example:
G = SRG_253_140_87_65()
Exception raised:
Traceback (most recent call last):
File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 496, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 858, in compile_and_execute
exec(compiled, globs)
File "<doctest
sage.graphs.strongly_regular_db.SRG_253_140_87_65[1]>", line 1, in
<module>
G = SRG_253_140_87_65()
File "sage/graphs/strongly_regular_db.pyx", line 789, in
sage.graphs.strongly_regular_db.SRG_253_140_87_65
(build/cythonized/sage/graphs/strongly_regular_db.c:12499)
W = WittDesign(23)
File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-
packages/sage/combinat/designs/block_design.py", line 790, in WittDesign
gap.load_package("design")
File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-
packages/sage/interfaces/gap.py", line 507, in load_package
"You may want to install the gap_packages and/or database_gap
SPKGs.")
RuntimeError: Error loading Gap package design. You may want to
install the gap_packages and/or database_gap SPKGs.
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/19133#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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