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Bug 671

Summary: Nan Eigenvector Components from Zero matrix with ComputationInfo == Success
Product: Eigen Reporter: Gabriel Hare <ghare>
Component: EigenvaluesAssignee: Nobody <eigen.nobody>
Status: NEW ---    
Severity: Unknown CC: gael.guennebaud, jacob.benoit.1, jitseniesen
Priority: Normal    
Version: 3.2   
Hardware: All   
OS: All   
Whiteboard:

Description Gabriel Hare 2013-10-03 00:36:34 UTC
Asking for an eigendecomposition of a zero matrix results in eigenvectors that are a mix of the unit (identity) basis and NaN component values.

Since the eigenvectors of a zero matrix are undefined this result is acceptable.

However, the ComputationInfo result returns "Success" when a non success status (such as NumericalIssue) seems more appropriate and helpful.
Comment 1 Nobody 2019-12-04 12:40:09 UTC
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