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Key: MATH-273
Type: Bug Bug
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Luc Maisonobe
Reporter: Benjamin McCann
Votes: 0
Watchers: 0
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Commons Math

Basic variable is not found correctly in simplex tableau

Created: 03/Jun/09 05:11 AM   Updated: 07/Aug/09 09:15 AM
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Component/s: None
Affects Version/s: 2.0
Fix Version/s: 2.0

Time Tracking:
Not Specified

File Attachments:
  File Name Date Attached Attached By Size
Text File Licensed for inclusion in ASF works SimplexSolverTest.patch 2009-06-03 05:12 AM Benjamin McCann 1 kB
Text File Licensed for inclusion in ASF works SimplexTableau.patch 2009-06-03 05:12 AM Benjamin McCann 0.9 kB

Resolution Date: 03/Jun/09 09:07 AM


 Description  « Hide
The last patch to SimplexTableau caused an automated test suite I'm running at work to go down a new code path and uncover what is hopefully the last bug remaining in the Simplex code.
SimplexTableau was assuming an entry in the tableau had to be nonzero to indicate a basic variable, which is incorrect - the entry should have a value equal to 1.

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Benjamin McCann made changes - 03/Jun/09 05:12 AM
Field Original Value New Value
Attachment SimplexSolverTest.patch [ 12409728 ]
Attachment SimplexTableau.patch [ 12409727 ]
Luc Maisonobe made changes - 03/Jun/09 09:07 AM
Resolution Fixed [ 1 ]
Assignee Luc Maisonobe [ luc ]
Status Open [ 1 ] Resolved [ 5 ]
Luc Maisonobe made changes - 07/Aug/09 09:15 AM
Status Resolved [ 5 ] Closed [ 6 ]

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