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数形结合是借助图形的性质来研究数量关系,或者借助数量关系来研究图形的性质.即利用“数”和“形”的相互转化来解决数学问题的方法,它具有直观性,灵活性和形象性等特点.数形结合贵在结合,只有把数与形完美结合,才能使数与形各展其长,相辅相成,做到形中觅数,数中觅形,使逻辑思
The combination of number and shape is based on the nature of the graph to study the quantitative relationship or the nature of the graph by means of the quantitative relationship. That is, the method of solving the mathematics problem by using the mutual transformation of “number” and “shape”. It has intuitiveness, flexibility and The characteristics of the image and the like. The combination of number and shape is expensive, and only when the number and shape are perfectly combined, can the number and shape show their length, complement each other, and achieve the number of shapes, the number of shapes, and the logical thinking.