#17034: New user interface for orthogonal arrays and a .explain_construction
method
-------------------------------------+-------------------------------------
Reporter: ncohen | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers: Vincent Delecroix
Authors: Nathann Cohen | Work issues:
Report Upstream: N/A | Commit:
Branch: | c7eae7de7591d2f8f9c2f4de13396307ac210028
u/vdelecroix/17034 | Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Changes (by jdemeyer):
* status: positive_review => needs_work
Comment:
This really should be a `ValueError`:
{{{
sage: designs.orthogonal_arrays.largest_available_k(-1)
---------------------------------------------------------------------------
AssertionError Traceback (most recent call
last)
<ipython-input-1-67d3fe8bb1f0> in <module>()
----> 1 designs.orthogonal_arrays.largest_available_k(-Integer(1))
/usr/local/src/sage-git/local/lib/python2.7/site-
packages/sage/combinat/designs/orthogonal_arrays.pyc in
largest_available_k(n, t)
934 """
935 from block_design import projective_plane
--> 936 assert n>=0, "n(={}) was expected to be >=0".format(n)
937 assert t>=0, "t(={}) was expected to be >=0".format(t)
938 if n == 0 or n == 1:
AssertionError: n(=-1) was expected to be >=0
}}}
(use `assert` when you ''know'' that a condition must be true, not to
''check'' whether a condition is true)
--
Ticket URL: <http://trac.sagemath.org/ticket/17034#comment:23>
Sage <http://www.sagemath.org>
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