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“数形结合”就是以数学问题的条件和结论之间的内在联系为依据,在分析其代数意义的同时揭示其几何的直观意义的解决数学问题的方法.数形结合的解题思想方法,其本质是“数”与“形”之间的相互转换.我们可以这样理解,从而使现实事物的空间形式的直观形象和代数数据的精确和谐并巧妙地相结合.一、数形结合思想在方程的根和求近似解问题中的应用在求解方程的根时很多方程都没法确切地找到它的解或者只能找到一个近似解.而求近似解需要确定的是这个解在哪
“Number combination ” is based on the mathematical connection between the conditions and the conclusion of the internal linkages, in the analysis of its algebraic significance, while revealing its intuitive geometric meaning of the mathematical solution to mathematical problems. Method, the essence of which is the conversion between “number ” and “shape ”, and we can understand it so that the visual image of the spatial form of the real thing is precisely and ingeniously combined with the algebraic data. , The combination of the idea of number and shape in the root of the equation and find the approximate solution of the problem in solving the root of the equation many equations are unable to find its exact solution or can only find an approximate solution to find the approximate solution needs to be determined Where is this solution?