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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
22 lines
726 B
Ruby
22 lines
726 B
Ruby
require_relative '../../../spec_helper'
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require 'matrix'
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describe "Matrix::EigenvalueDecomposition#eigenvectors" do
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it "returns an array of complex eigenvectors for a rotation matrix" do
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# Fix me: should test for linearity, not for equality
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Matrix[[ 1, 1],
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[-1, 1]].eigensystem.eigenvectors.should ==
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[ Vector[1, Complex(0, 1)],
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Vector[1, Complex(0, -1)]
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]
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end
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it "returns an array of real eigenvectors for a symmetric matrix" do
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# Fix me: should test for linearity, not for equality
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Matrix[[1, 2],
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[2, 1]].eigensystem.eigenvectors.should ==
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[ Vector[0.7071067811865475, -0.7071067811865475],
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Vector[0.7071067811865475, 0.7071067811865475]
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]
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end
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end
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