You can use arithmetic operators within your constant declarations as long as there are no mixed type expressions.
只要没有混合的类型表达式，就可以在常数说明中使用算术运算符。
2
Analyzing the characteristic of the hoist, a kind of digital controller of constant speed is designed using Dahlin arithmetic, the model and formulas are presented.
对绞车的工作特性进行分析，采用大林算法，设计了一种恒速度数字控制器，给出了控制模型和数学公式。
3
This paper introduces the application of genetic arithmetic in parameters solution of irradiation control model, which causes constant optimum of irradiation control system and a satisfactory result.