一、数形结合思想数学是研究空间形式与数量关系的一门学科.而数与形是相互联系的,数形结合思想就是通过数与形之间的转化来解决数学问题的思想方法.数轴与直角坐标系的建立,为数与形的沟通提供了工具,使得抽象的数量关系有了形象直观的几何意义,而直观图象的性质也常可用数量关系加以精确的描述.尤其是函数解析式和函数的图象则 First, the number of ideas with the combination of mathematical mathematics is to study the relationship between the number of forms and the number of space, while the number and shape are interrelated, the combination of number is the idea of ​​mathematical transformation through the transformation between number and form of thinking to solve mathematical problems. With the establishment of Cartesian coordinate system, it provides a tool for the communication of number and form, which makes the abstract quantitative relationship have the visual geometric meanings, and the nature of the visual image can often be accurately described by the quantitative relationship.Especially, And the function of the image then