摘要
给出了形如dxdt+axα=b的一类非线性微分方程拟合的形式 ,对于非负离散点列 ,根据离散点列的凹凸性 ,讨论了选取α的方法 ,然后确定未知参数a、b .
We have given the imitation pattern to a kind of nonlinear grey differential equation,such as dxdt+ax α=b.For dispersed nonnegative point range we disscused the choice to α by the concavo-convex property of its accumulate array,then determined the unknown number a and b.The imitative pattern can reflect the real change of the array.
出处
《山东师范大学学报（自然科学版）》
CAS
2003年第2期17-19,共3页
Journal of Shandong Normal University(Natural Science)
