数形结合是一种重要的数学思想方法．本文拟就如何适时地妙用数形结合，谈些个人观点，供参考． 一、数形结合在求最值中的妙用 求函数的最值，方法颇多．但有些题目看似代数问题，采用代数方法求解，往往演算过程繁琐冗长，或者无从着手．假如题设与几何图形有联系，那么利用 The combination of number and shape is an important mathematical thinking method. This article plans to discuss some personal views on how to use the combination of numbers and shapes in a timely manner for reference. First, the magical effect of the combination of numbers and shapes in the search for the best value, the most value of the function, a lot of methods. However, some of the topics seem to be algebraic problems. Using algebraic methods to solve them often leads to tedious and lengthy calculus, or no way to start. If the question is related to geometry, then use