Because of the above, properties of functional operations will be discussed in a new way according to convexity and operational properties of sets. Moreover the epigraph will be discussed in order to characterize functions intuitively.
基于上述原因，本文通过研究集合的凸性及运算性质，从新的侧面研讨函数的属性及运算，并通过研究上图象达到形象直观地刻画函数的目的。
参考来源 - 集合的凸性及其应用·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-COUNT An epigraph is a quotation at the beginning of a book or chapter of a book. (卷首或章节前的)格言; 引语 [usu N 'to' n]
The epigraph to O'Rourke's book is from de Quincey's Confessions of an English Opium Eater.
奥罗克著作卷首的引语取自德·昆西的《瘾君子自白》。
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