#10454: Add to matrices .is_nonsingular() as an alias for .is_invertible()
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Reporter: rbeezer | Owner: jason, was
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-4.6.2
Component: linear algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by rbeezer):
* status: new => needs_review
Comment:
It is never what it seems. Over a commutative ring, the '''right''' thing
to do is to define `is_singular()` to be the condition that the matrix has
a zero determinant.
So this needs to be a new method, it is better stated as the positive
version, and it is more than just a convenience.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10454#comment:6>
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