implement_negate_for_matrix.patch - Ruby master - Ruby Issue Tracking System

Feature #10069 » implement_negate_for_matrix.patch

NEWS
		by deleting the specified row and column.
		* Matrix#cofactor(row, column) returns the (row, column) cofactor
		which is obtained by multiplying the first minor by (-1)**(row + column).
		* Matrix#@+ and Matrix#@- .

		* Method
		* New methods:

     # * #inv
     # * #**
     # * #+@
     # * #-@
+    #
     # Matrix functions:
     # * #determinant
-...
         self
       end
       def -@
         collect {|e| -e }
       end
       #--
       # MATRIX FUNCTIONS -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
       #++

         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]],

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