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Gmane
From: Oswin Krause <Oswin.Krause <at> ruhr-uni-bochum.de>
Subject: =?utf-8?q?How_to_solve_triangular_System_XA=3DB=3F?=
Newsgroups: gmane.comp.lib.boost.ublas
Date: Friday 13th April 2012 17:29:39 UTC (over 5 years ago)
Hi list,

i usually only need to solve triangular systems of the type AX=B (with 
A, X and B being matrices) for which inplace_solve seems to work quite 
well. But now i have to solve the system XA=B. For vectors exists a 
special version which is designed for this, e.g. 
inplace_solve(b,A,blas::lower); But there is no such function for the 
matrix case.

Is there an easy way to emulate the behaviour? I am currently thinking 
about whether transposing the matrices might help, but i am not sure 
whether this works as expected

when calling inplace_solve(trans(A),trans(B),...)

this should be equivalent to
A^T X^T = B^T
=> X A = B

is that correct?

Greetings,
Oswin
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