GM Science GM模型 全称：灰色理论的微分方程型模型 灰色理论的微分方程型模型称为GM模型，G表示grey(灰)，M表示Model(模型)．GM(1，N)表示1阶的，N个变量的微分方程型模型．而GM(1，1)则是1阶的， 1个变量的微分方程型模型。,GM Science GM model name: the theory of differential equations gray gray theory-based model of the differential equation-based model known as the GM model, G said grey (gray), M said the Model (model). GM (1, N), said a band, N-type model of a variable differential equations. The GM (1,1) is an order, and a variable differential equation-based model.