摘要
研究导数用变量多项式与因变量有理函数乘积形式表达的数学模型，推导出回归方程计算式。
It discusses a mathmetic model expressed by derivative polynomial and multipilication polynomial from which it derives a discrete regression equation and obtains the relation between age of menstruation and girl′s first menstruation.
出处
《武汉交通科技大学学报》
1999年第2期202-204,共3页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
