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极限思想是指用极限概念分析问题和解决问题的一种数学方法.极限法解题的一般步骤可概括为:对于被考察的未知量,先设法构思一个与这有关的变量,确认这变量通过无限过程的结果就是所求的未知量,最后用极限计算来得到结果.极限法不同于一般的代数方法,代数中的加、减、乘、除等运算都是由两个数来确定出另一个数,而在极限法中则是由无
The limit idea is a mathematical method to analyze the problem and solve the problem with the limit.The general steps of the limit method can be summarized as follows: For the unknowns to be investigated, we first try to construct a variable related to it, and confirm that the variable is passed The result of an infinite process is the unknown quantity sought, and finally the result is obtained by the limit calculation. The limit method is different from the general algebraic method. The operations of addition, subtraction, multiplication and division of algebra are determined by two numbers A number, but in the limit method is by no