SDS-A(Sgstems Digital Simnlafor-A)是一套用标准FORTRAN语言编写的多功能系统仿真程序包,它适用于在国内目前装备的小型或微型计算机上实现对分布系统,集中系数性质的系统进行数字仿真的多功能程序包,特别在分布参数系统仿真方面具有较显著的优点。SDS-A还可以方便地对各种线性或非线性微分方程的初值或某些边值问题作数值求解,以及对各种任意函数作插值和数值求导等。本程序包由64个子程序组成, SDS-A (Sgstems Digital Simnlafor-A) is a multi-functional system simulation package written in the standard FORTRAN language. It is suitable for implementing the system of distributed system and concentrated coefficient in the current domestic small or micro computer Multi-functional simulation package, especially in the distributed parameter system simulation has more significant advantages. SDS-A can also easily solve the initial or some boundary value problems of various linear or nonlinear differential equations, as well as interpolate and derive numerical values ​​of various arbitrary functions. This package consists of 64 subroutines,