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
|
require File.expand_path('../../../../spec_helper', __FILE__)
require 'matrix'
ruby_version_is "1.9.3" do
describe "Matrix::EigenvalueDecomposition#eigenvectors" do
ruby_bug '#7208', '1.9.3' do
it "returns an array of complex eigenvectors for a rotation matrix" do
# Fix me: should test for linearity, not for equality
Matrix[[ 1, 1],
[-1, 1]].eigensystem.eigenvectors.should ==
[ Vector[1, Complex(0, 1)],
Vector[1, Complex(0, -1)]
]
end
end
it "returns an array of real eigenvectors for a symetric matrix" do
# Fix me: should test for linearity, not for equality
Matrix[[1, 2],
[2, 1]].eigensystem.eigenvectors.should ==
[ Vector[0.7071067811865475, -0.7071067811865475],
Vector[0.7071067811865475, 0.7071067811865475]
]
end
end
end
|
