This paper describes the concept, system structure of the Decision Support system (DSS) firstly, then introduces the database, model library, knowledge library and arithmetic library of the DSS.
本文首先对决策支持系统(dss)的概念、体系结构进行了简要的介绍，阐述了DSS的数据库系统、模型库系统、知识库系统以及方法库系统。
Library Support for nullable types, including conversion operators and arithmetic operators.
为可空类型提供类库支持，包括转换运算符和算术运算符。
Scilab provides simple matrix operations like multiplication, plus a library of high-level operations like complex multi-dimensional arithmetic and correlation.
Scilab 提供了简单的矩阵运算（比如乘法），也提供了高级运算库（比如复数多维算法和相关）。
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