* lib/matrix.rb: Add @- and @+ for Matrix and Vector.

  patch by gogo tanaka [#10068] [#10069]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47840 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/matrix/test_matrix.rb b/test/matrix/test_matrix.rb
index 2d99cead42..79ae9b965b 100644
--- a/test/matrix/test_matrix.rb
+++ b/test/matrix/test_matrix.rb
@@ -62,6 +62,15 @@ class TestMatrix < Test::Unit::TestCase
     assert_equal @m1.hash, @m3.hash
   end
 
+  def test_uplus
+    assert_equal(@m1, +@m1)
+  end
+
+  def test_negate
+    assert_equal(Matrix[[-1, -2, -3], [-4, -5, -6]], -@m1)
+    assert_equal(@m1, -(-@m1))
+  end
+
   def test_rank
     [
       [[0]],