数与形是数学发展中两个最古老的,也是最基本的研究对象,它们在一定的条件下可以相互转化,而借助其背景图形的性质,可使那些抽象的概念、复杂的数量关系变得直观具体,以便于探求解题思路或找到问题的结论。数形结合,不仅是一种重要的解题方法,也是一种重要的思维方法。 Numbers and shapes are the two oldest and most basic research objects in the development of mathematics. They can be transformed into each other under certain conditions. With the help of the nature of their background graphics, they can change the abstract concepts and complex quantitative relationships. Be intuitive and specific, in order to explore the problem or find the conclusions of the problem. The combination of numbers and shapes is not only an important method of solving problems, but also an important way of thinking.