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初中数学研究的对象可分为数和形两部分,数与形有联系,这个联系常称之为数形结合.作为一种数学思想方法,数形结合的应用大致又可分成两种情形:或者借助于数的精确性来阐明形的某种属性,或者借助形的几何直观性来阐明数之间某种关系.就是说,当我们把数形结合当作数学思想来应用时,数与形两者之中,一个为手段,另一个为目的.下面举例说明.
The object of junior high school mathematics research can be divided into two parts of number and shape, the number is related to the shape, this connection is often called the combination of number and shape .As a kind of mathematical thought and method, the application of number combination can be roughly divided into two situations: In terms of the accuracy of the number to clarify the shape of a certain attribute, or with the help of geometrical intuition to clarify the relationship between the number of. That is, when we combine the number of shapes as a mathematical thought to apply, the number and shape of the two Among them, one is the means and the other is the purpose.