#17405: solve_right with matrix right hand side fails over RDF and CDF
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Reporter: fredrik.johansson | Owner:
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.5
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Changes (by peterwicksstringfield):
* status: new => needs_review
Comment:
I attached a patch to this ticket.
Following the pattern set by the solve_right and solve_left in
src/sage/matrix/matrix2.pyx, I tweaked the code in
src/sage/matrix/matrix_double_dense.pyx to make solve_right and solve_left
for RDF and CDF matrices accept matrices for b. If b is given as a matrix,
the answer x will be returned as a matrix.
Please note:
1. The solve_left in matrix2 uses solve_right, to reduce redundancy; while
the solve_left in matrix_double_dense does NOT use solve_right, and
instead duplicates some code.
2. The solve_left and solve_right in matrix_double_dense are now more
lenient than those in matrix2, since they accept not just vectors and
matrices for b, but also things that can be coerced into vectors (like
Python lists).
I didn't try to fix either of those issues.
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Ticket URL: <http://trac.sagemath.org/ticket/17405#comment:1>
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