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| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-01-09 20:35:28 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-01-09 20:35:28 +0000 |
| commit | 2ae2d9dd4dae4089bc1c0a813cd520734ad33d28 (patch) | |
| tree | 0db059ee0330d04d475ab5d17f116a88d92171dd /test | |
| parent | 6051cf527b70173a675a51084894be4dce56a0bd (diff) | |
* lib/matrix.rb (Matrix#inverse_from): use #quo. backported r9490.
* lib/matrix.rb (Matrix#determinant): ditto. [ruby-core:27507]
* lib/matrix.rb (Matrix#rank): ditto.
* lib/matrix.rb (Matrix::Scalar#initialize): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@26263 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
| -rw-r--r-- | test/matrix/test_matrix.rb | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/test/matrix/test_matrix.rb b/test/matrix/test_matrix.rb index 0850117b86..6b9b587c6d 100644 --- a/test/matrix/test_matrix.rb +++ b/test/matrix/test_matrix.rb @@ -46,4 +46,111 @@ class TestMatrix < Test::Unit::TestCase assert_equal @m1.hash, @m2.hash assert_equal @m1.hash, @m3.hash end + + def test_rank + [ + [[0]], + [[0], [0]], + [[0, 0], [0, 0]], + [[0, 0], [0, 0], [0, 0]], + [[0, 0, 0]], + [[0, 0, 0], [0, 0, 0]], + [[0, 0, 0], [0, 0, 0], [0, 0, 0]], + [[0, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0]], + ].each do |rows| + assert_equal 0, Matrix[*rows].rank + end + + [ + [[1], [0]], + [[1, 0], [0, 0]], + [[1, 0], [1, 0]], + [[0, 0], [1, 0]], + [[1, 0], [0, 0], [0, 0]], + [[0, 0], [1, 0], [0, 0]], + [[0, 0], [0, 0], [1, 0]], + [[1, 0], [1, 0], [0, 0]], + [[0, 0], [1, 0], [1, 0]], + [[1, 0], [1, 0], [1, 0]], + [[1, 0, 0]], + [[1, 0, 0], [0, 0, 0]], + [[0, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0]], + [[1, 0, 0], [0, 0, 0], [0, 0, 0]], + [[0, 0, 0], [1, 0, 0], [0, 0, 0]], + [[0, 0, 0], [0, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0], [0, 0, 0]], + [[0, 0, 0], [1, 0, 0], [1, 0, 0]], + [[1, 0, 0], [0, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0], [1, 0, 0]], + [[1, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0]], + [[1, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0]], + [[1, 0, 0], [1, 0, 0], [0, 0, 0], [0, 0, 0]], + [[1, 0, 0], [0, 0, 0], [1, 0, 0], [0, 0, 0]], + [[1, 0, 0], [0, 0, 0], [0, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0], [1, 0, 0], [0, 0, 0]], + [[1, 0, 0], [0, 0, 0], [1, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0], [0, 0, 0], [1, 0, 0]], + [[1, 0, 0], [1, 0, 0], [1, 0, 0], [1, 0, 0]], + + [[1]], + [[1], [1]], + [[1, 1]], + [[1, 1], [1, 1]], + [[1, 1], [1, 1], [1, 1]], + [[1, 1, 1]], + [[1, 1, 1], [1, 1, 1]], + [[1, 1, 1], [1, 1, 1], [1, 1, 1]], + [[1, 1, 1], [1, 1, 1], [1, 1, 1], [1, 1, 1]], + ].each do |rows| + matrix = Matrix[*rows] + assert_equal 1, matrix.rank + assert_equal 1, matrix.transpose.rank + end + + [ + [[1, 0], [0, 1]], + [[1, 0], [0, 1], [0, 0]], + [[1, 0], [0, 1], [0, 1]], + [[1, 0], [0, 1], [1, 1]], + [[1, 0, 0], [0, 1, 0]], + [[1, 0, 0], [0, 0, 1]], + [[1, 0, 0], [0, 1, 0], [0, 0, 0]], + [[1, 0, 0], [0, 0, 1], [0, 0, 0]], + + [[1, 0, 0], [0, 0, 0], [0, 1, 0]], + [[1, 0, 0], [0, 0, 0], [0, 0, 1]], + + [[1, 0], [1, 1]], + [[1, 2], [1, 1]], + [[1, 2], [0, 1], [1, 1]], + ].each do |rows| + m = Matrix[*rows] + assert_equal 2, m.rank + assert_equal 2, m.transpose.rank + end + + [ + [[1, 0, 0], [0, 1, 0], [0, 0, 1]], + [[1, 1, 0], [0, 1, 1], [1, 0, 1]], + [[1, 1, 0], [0, 1, 1], [1, 0, 1]], + [[1, 1, 0], [0, 1, 1], [1, 0, 1], [0, 0, 0]], + [[1, 1, 0], [0, 1, 1], [1, 0, 1], [1, 1, 1]], + [[1, 1, 1], [1, 1, 2], [1, 3, 1], [4, 1, 1]], + ].each do |rows| + m = Matrix[*rows] + assert_equal 3, m.rank + assert_equal 3, m.transpose.rank + end + end + + def test_inverse + assert_equal(Matrix[[-1, 1], [0, -1]], Matrix[[-1, -1], [0, -1]].inverse) + end + + def test_determinant + assert_equal(45, Matrix[[7,6], [3,9]].determinant) + assert_equal(-18, Matrix[[2,0,1],[0,-2,2],[1,2,3]].determinant) + end end |
