temporary increase

The concept of instant increment rate is recommended, the relation between stationary increment and compound interest increment is analyzed and the application of instant increment rate is introduced into the theoretical and practical model.

引入了瞬时增长率的概念,分析了平稳增长与连续复利增长的关系,并在理论及实际建模中介绍了瞬时增长率的应用。