经济学中的年金、现值、终值是金融专业各学科中重要的概念,对这些概念,可用高数中定积分计算得出它们相互关系的一些结论,这对于顺利解决有关金融中的数学问题及理解算法是十分有益的. The annuity, present value and final value in economics are the important concepts in all disciplines of the finance major. Some conclusions about these concepts can be obtained by using the mid-calculus of the higher numbers to calculate their mutual relations. This is very important for the smooth solution to the problems related to mathematics in finance The problem and understanding algorithm is very useful.