"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "Libtmp/GSL/LINALG/gsl_linalg.pd" between
PDL-2.074.tar.gz and PDL-2.075.tar.gz

About: PDL (Perl Data Language) aims to turn perl into an efficient numerical language for scientific computing (similar to IDL and MatLab).

gsl_linalg.pd  (PDL-2.074):gsl_linalg.pd  (PDL-2.075)
skipping to change at line 25 skipping to change at line 25
use PDL::MatrixOps; # for 'x' use PDL::MatrixOps; # for 'x'
use PDL::GSL::LINALG; use PDL::GSL::LINALG;
my $A = pdl [ my $A = pdl [
[0.18, 0.60, 0.57, 0.96], [0.18, 0.60, 0.57, 0.96],
[0.41, 0.24, 0.99, 0.58], [0.41, 0.24, 0.99, 0.58],
[0.14, 0.30, 0.97, 0.66], [0.14, 0.30, 0.97, 0.66],
[0.51, 0.13, 0.19, 0.85], [0.51, 0.13, 0.19, 0.85],
]; ];
my $B = sequence(2,4); # column vectors my $B = sequence(2,4); # column vectors
LU_decomp(my $lu=$A->copy, my $p=null, my $signum=null); LU_decomp(my $lu=$A->copy, my $p=null, my $signum=null);
# transpose so first dim means is vector, higher dims thread # transpose so first dim means is vector, higher dims broadcast
LU_solve($lu, $p, $B->transpose, my $x=null); LU_solve($lu, $p, $B->transpose, my $x=null);
$x = $x->inplace->transpose; # now can be matrix-multiplied $x = $x->inplace->transpose; # now can be matrix-multiplied
=head1 DESCRIPTION =head1 DESCRIPTION
This is an interface to the linear algebra package present in the This is an interface to the linear algebra package present in the
GNU Scientific Library. Functions are named as in GSL, but with the GNU Scientific Library. Functions are named as in GSL, but with the
initial C<gsl_linalg_> removed. They are provided in both real and initial C<gsl_linalg_> removed. They are provided in both real and
complex double precision. complex double precision.
 End of changes. 1 change blocks. 
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