每一个数学符号都具有特定的概念与使用条件的限制。当扩大某个数学符号的使用范围时都必须保持原有概念的一致性,以求对符号的概念理解的统一与明确,尤其在自成体系的论著与教科书中,更应该在使用数学符号时保持其完整的体系。另外,在选择使用数学符号时,对符号本身必须具备简捷、明了的特征,以利数学内容的筒缩与抽象。“好的符号有可能大大节省思维劳动”,因此,正确,合理地使用符号也应当是中 Each mathematical symbol has a specific concept and restrictions on the conditions of use. When expanding the scope of use of a certain mathematical symbol must maintain the consistency of the original concept in order to unify and clarify the conceptual understanding of symbols, especially in self-constructed works and textbooks, it should be more when using mathematical symbols Maintain its complete system. In addition, when choosing to use mathematical symbols, the symbols themselves must have simple and clear features to facilitate the mathematical shrinkage and abstraction. “A good symbol may save a lot of thinking labor.” Therefore, correct and reasonable use of symbols should also be