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ruby--ruby/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb
eregon 401b64c4e8 Update to ruby/spec@c1b568b
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-04 15:09:32 +00:00

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Ruby

require_relative '../../../spec_helper'
require 'matrix'
describe "Matrix::EigenvalueDecomposition#eigenvalue_matrix" do
it "returns a diagonal matrix with the eigenvalues on the diagonal" do
Matrix[[14, 16], [-6, -6]].eigensystem.eigenvalue_matrix.should == Matrix[[6, 0],[0, 2]]
Matrix[[1, 1], [-1, 1]].eigensystem.eigenvalue_matrix.should == Matrix[[Complex(1,1), 0],[0, Complex(1,-1)]]
end
end