中文说明：灰色预测是一种对含有不确定因素的系统进行预测的方法。灰色预测通过鉴别系统因素之间发展趋势的相异程度，即进行关联分析，并对原始数据进行生成处理来寻找系统变动的规律，生成有较强规律性的数据序列，然后建立相应的微分方程模型，从而预测事物未来发展趋势的状况。其用等时距观测到的反应预测对象特征的一系列数量值构造灰色预测模型，预测未来某一时刻的特征量，或达到某一特征量的时间。
English Description：
Grey forecasting is a method for prediction of systems with uncertainties. Grey forecasting by identifying trends between different levels of the system, that is, analyzing the correlation, and to generate raw data processing to find the system changes the law, generating strong regularity of data sequences and a corresponding differential equation model to predict future trends. Equal interval response prediction of the observed object constructs a grey number features a series of models, forecasting features at some point in the future, or reach a certain characteristic values of the time.