$\begin{array}{cll} x & \log x & \log' x \\ \LOGfunction{1}{\logx}{\Dlogx} 1 &\logx & \Dlogx\\ \LOGfunction{2}{\logx}{\Dlogx} 2 &\logx & \Dlogx\\ \LOGfunction{3}{\logx}{\Dlogx} 3 &\logx & \Dlogx\\ \LOGfunction{4}{\logx}{\Dlogx} 4 &\logx & \Dlogx\\ \LOGfunction{5}{\logx}{\Dlogx} 5 &\logx & \Dlogx\\ \LOGfunction{6}{\logx}{\Dlogx} 6 &\logx & \Dlogx \end{array}$