Mathematicalnotations of the generic design are needed to facilitate analytical analysis of website design.
为了便于分析网站设计，使用一些数学符号是必要的。
2
The size normalization of notations is a common pretreatment method in mathematical expression recognition, and it has a great significance to enhance the efficiency of notation recognition.
符号的大小归一化是数学表达式识别的一种很常见的预处理方法，它对于提高符号的识别率具有重要的意义。
3
After the mathematical model of multiple granularity time series is established, some notations related to the rule discovering are defined.