著名的德国数学家希尔伯特曾说过:“在讨论数学问题时,我相信特殊化比一般化起着更为重要的作用.把一般问题特殊化对解决有关数学题是一种行之有效的方法.相对事物的一般性而言,其特殊情形往往更加直观、具体、简单.因此,我们在解决某些复杂的数学问题时,往往只考察它的个别情形或极端情况.这种”以退为进“的策略,常常能帮助我 The well-known German mathematician Hilbert once said: ”When discussing mathematical problems, I believe that specialization plays a more important role than generalization. It is a specialization to solve general math problems The effective way to deal with the generality of the things, the special cases are often more intuitive, specific, simple, so we solve some complex mathematical problems, often only consider its individual circumstances or extremes, this “To retreat into the ” strategy, can often help me