Re: [Help-gsl] Determinant of a matrix:

[Brian Gough]

Doug McKee writes:
 > I'm probably a little late (just joined the list today), but I ran into 
 > this exact problem about a week ago.  I never figured out why my call 
 > to gsl_linalg_LU_det didn't work, but I did come up with a work-around. 
 >   If I copy the function definition from the gsl source and rename the 
 > function my_gsl_linalg_LU_det in my own file, it works great.  All it 
 > does is multiply the elements of the diagonal.  I'd still love to know 
 > why the library call fails though.  Just makes me nervous that other 
 > functions are failing and I'm not noticing.

Hello,

>From your description, this case is covered in chapter 2 (p16) of my
book "An Introduction to GCC", which explains how to troubleshoot
common problems like this (http://www.network-theory.co.uk/gcc/intro/).

All the money raised from the sales of the book supports the
development of free software and documentation.

-- 
Brian Gough
(GSL Maintainer)

Network Theory Ltd,
Commercial support for GSL --- http://www.network-theory.co.uk/gsl/