function on功能启动functionn.职务；功能；函数；重大聚会；应变量，有相关关系者；取决于vi.运行；起作用function of biliary tract胆道功能Function tolerance theory功能公差理论function of ocular muscle眼肌功能function separated design功能分离设计方法functions of the Renminbi人民币的职能function of two variables二元函数function-fitting method函数拟合法function of govern-ment政府职能Functions of Report Forms报表功能function and type of text文本功能及类型

1. A function is uniquely represented by a name and a set of operand types.
   函数由函数名以及一组操作数类型唯一地表示。
2. Based on sign digit negabinary representation, the two step addition and one step subtraction of arbitrary length operands can be performed.
   基于符号数字负二进制表达，提出了任意字长操作数的并行两步加法与一步减法。