mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
28 lines
857 B
Ruby
28 lines
857 B
Ruby
require_relative '../../spec_helper'
|
|
require 'matrix'
|
|
|
|
describe "Matrix.unitary?" do
|
|
it "returns false for non unitary matrices" do
|
|
Matrix[[0, 1], [1, 2]].unitary?.should == false
|
|
Matrix[[0, Complex(0, 2)], [Complex(0, 2), 0]].unitary?.should == false
|
|
Matrix[[0, Complex(0, 1)], [Complex(0, -1), 0]].unitary?.should == false
|
|
Matrix[[1, 1, 0], [0, 1, 1], [1, 0, 1]].unitary?.should == false
|
|
end
|
|
|
|
it "returns true for unitary matrices" do
|
|
Matrix[[0, Complex(0, 1)], [Complex(0, 1), 0]].unitary?.should == true
|
|
end
|
|
|
|
it "raises an error for rectangular matrices" do
|
|
[
|
|
Matrix[[0], [0]],
|
|
Matrix[[0, 0]],
|
|
Matrix.empty(0, 2),
|
|
Matrix.empty(2, 0),
|
|
].each do |rectangular_matrix|
|
|
lambda {
|
|
rectangular_matrix.unitary?
|
|
}.should raise_error(Matrix::ErrDimensionMismatch)
|
|
end
|
|
end
|
|
end
|