help-gsl
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Help-gsl] How to solve a linear equation system with left (lower) t


From: Brian Gough
Subject: Re: [Help-gsl] How to solve a linear equation system with left (lower) triangle matrix in gsl?
Date: Tue, 13 Mar 2007 17:35:38 +0000
User-agent: Wanderlust/2.14.0 (Africa) Emacs/21.3 Mule/5.0 (SAKAKI)

At Mon, 12 Mar 2007 04:26:22 +0100,
Alexander Morgenstern wrote:
> 
> Now my (hopefully not too stupid) question: I want to solve a linear
> equation system of the form:
> 
> Lx = b
> 
> With L being a left (lower) triangle matrix....

Hello,

There is a blas function gsl_blas_dtrsv that solves for upper or lower
triangular matrices, e.g. 

      gsl_vector_memcpy(x, b); /* x <- b */
      gsl_blas_dtrsv (CblasLower, CblasNoTrans, CblasUnit, L, x;)

See the documentation for more details.

-- 
best regards,

Brian Gough
(GSL Maintainer)

Network Theory Ltd,
Publishing the GSL Manual - http://www.network-theory.co.uk/gsl/manual/





reply via email to

[Prev in Thread] Current Thread [Next in Thread]