数学建模初步基础知识和蛛网模型，人口增长模型等经典模型介绍-Preliminary mathematical modeling of basic knowledge and cobweb model, the classical model of population growth models introduced

人是社会发展最基本的要素。随着人类社会的不断推进，世界人口呈上升的趋势。尤其是近几十年来在发展中国家，由于社会、政治方面较为稳定，各国努力发展自身经济，使得居民的生活水平不断提高，生活条件日益改善，从而导致社会总人口持续增长。-Man is the most basic elements of social development. With the continuous progress of human society, the world' s population was an u

灰色预测，适用于用灰色预测法解决预测问题，如港口吞吐量预测，人口增长预测-Gray forecast for gray forecasting method to solve forecasting problems, such as port throughput forecasts, population growth forecast