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化归,指的是转化与归结.即把数学中待解决或未解决的问题,通过观察、分析、联想、类比等思维过程,选择恰当的方法进行变换、转化,归结到某个或某些已经解决或比较容易解决的问题,从而最终解决原问题的一种思想.化归思想是解决数学问题的基本思想,解题的过程实际上就是转化的过程.如,未知向已知转化;复杂问题向简单问题转化;命题之间的转化;数与形的转化;空间向平面的转化;高次向低次的转化;多元向一元的转化;无限向有限的转化等,都是化归思想的体现.
Transformation refers to conversion and resolution. That is, to solve or solve unsolved problems in mathematics, through observation, analysis, association, analogy, and other thinking processes, select appropriate methods to transform, transform, and resolve to one or more. An idea that has been solved or relatively easy to solve, which ultimately solves the original problem. The idea of returning to the basic idea of solving mathematics problems, the process of problem solving is actually the process of transformation. For example, unknown to known transformation; complex Problems are transformed into simple ones; transformations between propositions; transformations of numbers and shapes; transformations of space into planes; transformations from higher to lower levels; transformations from pluralisms to one yuan; transformations from infinity to finiteness, etc. The embodiment.