Opened 12 years ago

Last modified 12 years ago

#10543 closed defect

Echelon form over QQ is mutable — at Initial Version

Reported by: Rob Beezer Owned by: jason, was
Priority: minor Milestone: sage-4.6.2
Component: linear algebra Keywords:
Cc: Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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Description

Which is not the norm for matrices over other rings.

sage: A=matrix(QQ,2,range(4))
sage: B=matrix(ZZ,2,range(4))
sage: C=A.echelon_form()
sage: D=B.echelon_form()
sage: C.is_mutable()
True
sage: D.is_mutable()
False

See http://groups.google.com/group/sage-devel/browse_thread/thread/ef90d24da0ee704c

Change History (1)

Changed 12 years ago by Rob Beezer

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