File: positive.t

package info (click to toggle)
libmath-matrixreal-perl 2.13-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye, forky, sid, trixie
  • size: 1,120 kB
  • sloc: perl: 2,837; makefile: 8
file content (32 lines) | stat: -rw-r--r-- 1,089 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
use Test::More tests => 8;
use File::Spec;
use lib File::Spec->catfile("..","lib");
use Math::MatrixReal qw/:all/;

do 'funcs.pl';

my $a = Math::MatrixReal->new_diag( [ 1, 2, -3 ] );
ok( ! $a->is_positive_definite, 'positive_definite' );

$a = Math::MatrixReal->new_diag( [ 1, 2, 3 ] );
ok( $a->is_positive_definite, 'positive_definite' );

$a = Math::MatrixReal->new_diag( [ 1, 2, 0 ] );
ok( ! $a->is_positive_definite, 'positive_definite' );

$a = Math::MatrixReal->new_from_rows( [ [1, 100], [1, 1] ] );
ok( ! $a->is_positive_definite, 'nonsymmetric matrix cannot be positive_definite' );

### 

$a = Math::MatrixReal->new_diag( [ 1, 2, -3 ] );
ok( ! $a->is_positive_semidefinite, 'positive_semidefinite' );

$a = Math::MatrixReal->new_diag( [ 1, 2, 3 ] );
ok( $a->is_positive_semidefinite, 'positive_semidefinite' );

$a = Math::MatrixReal->new_diag( [ 1, 2, 0 ] );
ok(  $a->is_positive_semidefinite, 'positive_semidefinite' );

$a = Math::MatrixReal->new_from_rows( [ [1, 100], [1, 1] ] );
ok( ! $a->is_positive_semidefinite, 'nonsymmetric matrix cannot be positive_semidefinite' );