On Thu, Jul 01, 2010 at 01:24:06PM -0700, Jonathan Leto wrote: > I maintain the Math::GSL CPAN [0] module and recently a user asked me > how to calculate the square root of a n?n positive-semidefinite real > matrix A. I browsed > through the GSL documentation and did not immediately find anything. > Is there a way to do this currently with GSL?
The user is asking about a matrix factorization, probably Cholesky. See the linear algebra section of the GSL manual, including gsl_linalg_cholesky_decomp. -- [email protected] SDF Public Access UNIX System - http://sdf.lonestar.org
