lib/eigen.rb in ruby-eigen-0.0.10.pre1 vs lib/eigen.rb in ruby-eigen-0.0.10

@@ -91,10 +91,11 @@
       j0 = r.begin >= 0 ? r.begin : r.begin + cols()
       col_size = r.end >= 0 ? r.size : r.end + cols() + 1
     end
     return [j0, col_size]
   end
+  private "row_range", "col_range"
 
   def [](i,j)
     return __get_item__(i,j) if i.is_a?(Numeric) and j.is_a?(Numeric)
 
     if i == true
@@ -107,9 +108,24 @@
     else
       j0, col_size = col_range(j)
     end
 
     return __get_block__(i0, j0, row_size, col_size)
+  end
+
+  def ref(range0, range1)
+    if range0 == true
+      i0, row_size = 0, rows()
+    else
+      i0, row_size = row_range(range0)
+    end
+    if range1 == true
+      j0, col_size = 0, cols()
+    else
+      j0, col_size = col_range(range1)
+    end
+
+    return __ref__(i0, j0, row_size, col_size)
   end
 
   def to_a
     ret = Array.new(rows())
     (0..(rows()-1)).each{|i|