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函数是中学数学中最重要的概念之一.函数思想是高中数学的主线.函数又是高中数学中的一个重要板块.人们利用函数观点解题的实质是将静态的问题放置于动态的变化过程中,便于把握问题的本质,快捷地找到合理的解题方案.作为函数三要素之一的值
Functions are one of the most important concepts in middle school mathematics. Function thinking is the main thread of high school mathematics. Functions are also an important part of high school mathematics. People use function ideas to solve the problem is to put the static problem in the dynamic change process. It is easy to grasp the nature of the problem and quickly find a reasonable solution to the problem. The value of one of the three elements of the function