关于一元线性回归简化计算公式的注记

本文用初等变换方法，给出了一元线性回归预测公式ｙ∧＝ａ＋ｂｘ中参数ａ和ｂ的简化计算公式．     

井上靖在中国：译价与研究

井上靖是日本当代名作家，20世纪60年代初他的作品开始在我国翻译出版，80年代形成译介井上学的高潮。在我国的井上学研究中，对井上创作的归属、创作方法、思想倾向和化内涵几个方面存在一些争议，总体上停留于社会批评的单一模式。对井上学的艺术审美研究、井上学与日本传统学的联系、井上学与西方学的关系、井上靖与中国关系的研究等课题，有待进一步作深入的研究。     

Are plants cognitive? A reply to Adams

According to F. Adams [this journal, vol. 68, 2018] cognition cannot be realized in plants or bacteria. In his view, plants and bacteria respond to the here-and-now in a hardwired, inflexible manner, and are therefore incapable of cognitive activity. This article takes issue with the pursuit of plant cognition from the perspective of an empirically informed philosophy of plant neurobiology. As we argue, empirical evidence shows, contra Adams, that plant behavior is in many ways analogous to animal behavior. This renders plants suitable to be described as cognitive agents in a non-metaphorical way. Sections two to four review the arguments offered by Adams in light of scientific evidence on plant adaptive behavior, decision-making, anticipation, as well as learning and memory. Section five introduces the ‘phyto-nervous’ system of plants. To conclude, section six resituates the quest for plant cognition into a broader approach in cognitive science, as represented by enactive and ecological schools of thought. Overall, we aim to motivate the idea that plants may be considered genuine cognitive agents. Our hope is to help propel public awareness and discussion of plant intelligence once appropriately stripped of anthropocentric preconceptions of the sort that Adams' position appears to exemplify.