函数是研究数量关系和空间形式的重要数学模型,它反映的是变量之间的对应关系．世界永远是处于运动变化之中的,因此无论是数量关系中还是空间形式中都充满了有关运动变化的问题．函数在当今数学的各个领域都扮演极为重要的角色．反比例函数是其中重要的一类．大家都知道反比例函数的图象是双曲线,但你知道吗,利用双曲线还可以解决一些著名的作图问题呢! Functions are important mathematical models for studying quantity relations and spatial forms. They reflect the correspondence between variables. The world is always in the midst of changes in the movement. Therefore, both the quantitative relationship and the spatial form are full of questions about movement change. Functions play an extremely important role in all fields of mathematics today. Inverse function is one of the important ones. Everyone knows that the image of the inverse scale function is hyperbolic, but do you know that using hyperbolas can also solve some of the famous drawing problems!