无论从理论方面还是从应用方面来看,周期函数都是极重要的。但在国内,一直缺少一本系统阐述周期函数的著作。安徽教育出版社出版的宣立新、马明两位先生的专著《周期函数初论》,填补了这方面的空白。作者居高临下,以高等数学的思想,分析处理周期函数的有关问题。大处落墨,同时又十分缜密。 The periodic function is very important from both theoretical and application perspectives. However, in China, there has been a lack of a system to elaborate the work of the periodic function. Mr. Xuan Lixin and Mr. Ma Ming’s monograph “The Initial Discussion of the Periodic Function” published by Anhui Education Publishing House fills this gap. The author takes a high profile and analyzes the issues related to periodic functions with the ideas of higher mathematics. There is a great deal of ink, yet it is very meticulous.