在中学高中教材中 ,介绍了测量凸透镜焦距的三种测量方法 ,即平面镜法、公式法、共轭法 .用这三种方法测量凸透镜焦距的误差大小如何呢 ?利用高等数学的微积分知识和函数的泰勒公式 ,可以对这三种测量方法的误差大小进行比较 .一、误差传递的一般公式设有函数 y=f (x1,x2 ,…… In middle school high school textbooks, three measurement methods for measuring the focal length of convex lenses are introduced: plane mirror method, formula method, and conjugation method. What are the errors in measuring the focal length of a convex lens using these three methods? The use of calculus in advanced mathematics and The Taylor formula of the function can be used to compare the error magnitudes of these three measurement methods. First, the general formula of error transfer has a function y=f (x1,x2,...