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数形结合思想就是根据数学问题的条件和结论之间的内在联系分析其代数含义,又揭示其几何直观,使数量关系与空间形式和谐地结合起来.这是一个极富数学特色的信息转换,有人比喻为“双面的刀刃”.它是数学解题中常用的思想方法,数形结合的思想可以使某些抽象的数学问题直观化、生动化,能够变抽象思维为形象思维,有助于把握数学问题的本质;另外,由于使用了数形结合的方法,很多问
The idea of number combination is to analyze its algebraic meaning according to the internal relations between the conditions and conclusions of mathematical problems and to reveal its geometrical intuition and combine the quantitative relationship with the spatial form harmoniously.This is a mathematical transformation of information, Some people likened to “double-sided knife ” .It is commonly used in mathematical problem-solving method, the combination of the number of ideas can make some abstract mathematical problems visualization, vivid, can change the thinking of the abstract thinking of the image, Help to grasp the nature of mathematical problems; In addition, due to the use of the method of combining numbers, many questions