def real_with_decompose
      if typecode == OBJECT or is_a?(Variable) or Thread.current[:lazy]
        real_without_decompose
      elsif typecode < COMPLEX_
        decompose 0
      else
        self
      end
    end
def real_with_decompose
      if typecode == OBJECT or is_a?(Variable) or Thread.current[:lazy]
        real_without_decompose
      elsif typecode < COMPLEX_
        decompose 0
      else
        self
      end
    end
Fast extraction for real values of complex array

 @return [Node] Array with real values.