形如N(N0常数)的函数我们把它叫做对数底函数。这是一个很少被人问津的函数,特别是它的单调性无人过问,更谈不上其应用了,简直成了“冷宫函数”。在多年的教学实践中,我常常应用这类函数的单调性来解决很多对数问题,却起到了许多事半功倍的作用和预想不到的效果。一、函数N(N A function of the form N (N0 constant) we call it a logarithmic function. This is a function that is rarely touched by people. In particular, its monotonous nature is not involved, let alone its application, and it has become a “cold-house function.” In many years of teaching practice, I often use the monotony of such functions to solve many logarithmic problems, but it has played many effective and unexpected results. First, the function N (N