数形结合思想是中学数学重要的思想方法之一,可以通过“以形助数”、“以数赋形”使某些抽象的数学问题直观化、生动化,变抽象思维为形象思维,体现了转化的思想、化归的思想,有助于把握数学问题的本质.但是,在利用数形结合思想过程中,如果作图不准确或数与形不吻合,则会导致致命的错误.这学期我们已经进入高三的总复习,近阶段主要复习的是函数及导数的内容,数形结合 The combination of number and shape is one of the important ways of thinking of mathematics in middle school. It can visualize and abstract some abstract mathematical problems through the help of Image thinking, reflecting the idea of ​​conversion, help to grasp the nature of mathematical problems.However, in the process of combining ideas with figures, if the drawing is not accurate or the number does not match with the shape, it will lead to death The semester we have entered the third year of the total review, the main review of the recent stage is the function and the derivative of the content, the number of forms combined