1,4-Naphthoquinones(1,4-NQs)are a class of aromatic motifs that are widely present among natural products and synthetic ......

针对反正切函数图像的特点以及函数变换理论和灰色系统建模理论。本文从理论上证明了利用函数π/2-arctanx在对非负递增序列进行变......