Re: uBLAS - Matrix Inversion

From: agiatojon JonAgiato_at_[hidden])
Date: 2003-02-25 08:51:24

--- In Boost-Users_at_[hidden], Thomas Reisinger <yg-boost-
users_at_m...> wrote:
> Dear Newsgroup,
> 
> I'm new in the field of numeric computing and I would like to 
learn more 
> about it. To solve my problem I need to invert a matix and use the 
> intermediate result as the input for following calculations.
> 
> I browsed the uBLAS library and played a little bit with it but I 
didn't 
> find a routine for matrix inversion. Is there any possibility to 
preform 
> it in a single step? Is this package the wrong tool for doing this 
and I 
> should use LAPACK++ or similar stuff?
> 
> Thanks in advance, Thomas
> 
> --
> Thomas Reisinger
> Braunschweig
> Germany
> mailto:t.reisinger_at_t...

Hello Thomas,
A couple of months ago I had the exact same query.  Unfortunatly, 
uBLAS does not perform matrix inversion.  There are essentially two 
options for you.  #1: I have found a couple of matrix libraries that 
are not of the same level of quality as uBLAS but suit ones needs to 
a reasonable degree.  You can find these through google, just type 
in C++ matrix or something to that effect and you will find many of 
them.  #2: Obtain "Numerical Recipies in C++."  This book is the C++ 
version of the very popular Numerical Recipies in C book, and 
details a lot of frequently used scientific algorithms.  You would 
then of course have to implement these ideas.

Best of luck in your efforts.

Jon Agiato
JonAgiato_at_[hidden]