#6979: [with patch, needs work] improve sparse matrix/vector product
----------------------------------------+-----------------------------------
Reporter: ylchapuy | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.1.2
Component: linear algebra | Keywords:
Reviewer: William Stein, Jason Grout | Author: Yann Laigle-Chapuy
Merged: |
----------------------------------------+-----------------------------------
Comment(by jason):
The code for both v*M and M*v has the result of type:
s = v.parent()(0)
However, the dimension here is clearly wrong---we don't get a result the
size of the vector, but the number of rows of M if computing M*v, and the
number of columns of M if computing v*M.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6979#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en
-~----------~----~----~----~------~----~------~--~---
