diff options
Diffstat (limited to 'spec/rubyspec/library/matrix/eigenvalue_decomposition')
6 files changed, 0 insertions, 115 deletions
diff --git a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb b/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb deleted file mode 100644 index 3443eeaaf9..0000000000 --- a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb +++ /dev/null @@ -1,9 +0,0 @@ -require File.expand_path('../../../../spec_helper', __FILE__) -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 diff --git a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvalues_spec.rb b/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvalues_spec.rb deleted file mode 100644 index c175a29947..0000000000 --- a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvalues_spec.rb +++ /dev/null @@ -1,22 +0,0 @@ -require File.expand_path('../../../../spec_helper', __FILE__) -require 'matrix' - -describe "Matrix::EigenvalueDecomposition#eigenvalues" do - it "returns an array of complex eigenvalues for a rotation matrix" do - Matrix[[ 1, 1], - [-1, 1]].eigensystem.eigenvalues.sort_by{|v| v.imag}.should == - [ Complex(1, -1), Complex(1, 1)] - end - - it "returns an array of real eigenvalues for a symetric matrix" do - Matrix[[1, 2], - [2, 1]].eigensystem.eigenvalues.sort.map!{|x| x.round(10)}.should == - [ -1, 3 ] - end - - it "returns an array of real eigenvalues for a matrix" do - Matrix[[14, 16], - [-6, -6]].eigensystem.eigenvalues.sort.map!{|x| x.round(10)}.should == - [ 2, 6 ] - end -end diff --git a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb b/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb deleted file mode 100644 index 709ec68d0c..0000000000 --- a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb +++ /dev/null @@ -1,20 +0,0 @@ -require File.expand_path('../../../../spec_helper', __FILE__) -require 'matrix' - -describe "Matrix::EigenvalueDecomposition#eigenvector_matrix" do - it "returns a complex eigenvector matrix given a rotation matrix" do - # Fix me: should test for linearity, not for equality - Matrix[[ 1, 1], - [-1, 1]].eigensystem.eigenvector_matrix.should == - Matrix[[1, 1], - [Complex(0, 1), Complex(0, -1)]] - end - - it "returns an real eigenvector matrix for a symetric matrix" do - # Fix me: should test for linearity, not for equality - Matrix[[1, 2], - [2, 1]].eigensystem.eigenvector_matrix.should == - Matrix[[0.7071067811865475, 0.7071067811865475], - [-0.7071067811865475, 0.7071067811865475]] - end -end diff --git a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb b/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb deleted file mode 100644 index 163bebe709..0000000000 --- a/spec/rubyspec/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb +++ /dev/null @@ -1,22 +0,0 @@ -require File.expand_path('../../../../spec_helper', __FILE__) -require 'matrix' - -describe "Matrix::EigenvalueDecomposition#eigenvectors" 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 - - 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 diff --git a/spec/rubyspec/library/matrix/eigenvalue_decomposition/initialize_spec.rb b/spec/rubyspec/library/matrix/eigenvalue_decomposition/initialize_spec.rb deleted file mode 100644 index 97d9be8f2d..0000000000 --- a/spec/rubyspec/library/matrix/eigenvalue_decomposition/initialize_spec.rb +++ /dev/null @@ -1,24 +0,0 @@ -require File.expand_path('../../../../spec_helper', __FILE__) -require 'matrix' - -describe "Matrix::EigenvalueDecomposition#initialize" do - it "raises an error if argument is not a matrix" do - lambda { - Matrix::EigenvalueDecomposition.new([[]]) - }.should raise_error(TypeError) - lambda { - Matrix::EigenvalueDecomposition.new(42) - }.should raise_error(TypeError) - end - - it "raises an error if matrix is not square" do - lambda { - Matrix::EigenvalueDecomposition.new(Matrix[[1, 2]]) - }.should raise_error(Matrix::ErrDimensionMismatch) - end - - it "never hangs" do - m = Matrix[ [0,0,0,0,0], [0,0,0,0,1], [0,0,0,1,0], [1,1,0,0,1], [1,0,1,0,1] ] - Matrix::EigenvalueDecomposition.new(m).should_not == "infinite loop" - end -end diff --git a/spec/rubyspec/library/matrix/eigenvalue_decomposition/to_a_spec.rb b/spec/rubyspec/library/matrix/eigenvalue_decomposition/to_a_spec.rb deleted file mode 100644 index e9b849eb97..0000000000 --- a/spec/rubyspec/library/matrix/eigenvalue_decomposition/to_a_spec.rb +++ /dev/null @@ -1,18 +0,0 @@ -require File.expand_path('../../../../spec_helper', __FILE__) -require 'matrix' - -describe "Matrix::EigenvalueDecomposition#to_a" do - before :each do - @a = Matrix[[14, 16], [-6, -6]] - @e = Matrix::EigenvalueDecomposition.new(@a) - end - - it "returns an array of with [V, D, V.inv]" do - @e.to_a.should == [@e.v, @e.d, @e.v_inv] - end - - it "returns a factorization" do - v, d, v_inv = @e.to_a - (v * d * v_inv).map{|e| e.round(10)}.should == @a - end -end |