坐标方法的应用使得用几何方法解决代数问题和用代数方法解决几何问题都成为可能,首先根据实际问题的背景建立合适的坐标系,然后借助坐标解决问题.下面就举例说明坐标方法的实际应用.一、用坐标表示变化规律例1为了保密,我们可以采用不同的密码对信息进行加密.图1所示的是小红设计的一幅“密码图”的一部分,目前已破译出“今天 The application of coordinate method makes it possible to solve algebraic problems by geometric methods and to solve geometric problems by algebraic methods. Firstly, a suitable coordinate system is established according to the background of actual problems, and then coordinates are used to solve the problem. The following illustrates an example of the practical application of coordinate methods. First, the use of coordinates that the law of change in order to keep secret 1, we can use different passwords to encrypt the information shown in Figure 1 is a small red design a ”password map“ part of the current has been deciphered ” Nowadays