#12050: matrix_integer_dense.LLL: parameters for algorithm NTL:LLL
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Reporter: dkrenn | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone: sage-4.8
Component: linear algebra | Keywords: parameters, LLL
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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We have the following lines in matrix_integer_dense.pyx starting at line
2678 (corrected already the wrong {{{algorithn}}}, see #12049):
{{{
#!python
# FP choice
if algorithm == 'NTL:LLL':
if fp == None:
algorithm = 'NTL:LLL_FP'
elif fp == 'fp':
algorithm = 'NTL:LLL_FP'
elif fp == 'qd':
algorithm = 'NTL:LLL_QD'
elif fp == 'xd':
algorithm = 'NTL:LLL_XD'
elif fp == 'rr':
algorithm = 'NTL:LLL_RR'
elif algorithm == 'fpLLL:heuristic':
...
}}}
Later it is checked the following
{{{
#!python
if algorithm == "NTL:LLL":
}}}
This means, to get algorithm {{{'NTL:LLL'}}} one has to set
{{{algorithm='NTL:LLL'}}} and {{{fp}}} neither {{{None}}} nor any of
{{{'fp'}}}, {{{'qd'}}}, {{{'xd'}}}, {{{'rr'}}}. This is not intuitive at
all and should not be.
Would it be a suitable solution to keep {{{'NTL:LLL'}}} if {{{fp=None}}}?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12050>
Sage <http://www.sagemath.org>
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