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本文介绍符号网络函数生成程序SFGEX的设计和实际运用。该程序依据网络拓展理论的“模型法”来构造,其特点是(1)占内存小,在小型机和微型机上能处理中等规模的电路;(2)运算量很省;(3)能灵活地给出局部子网络的结果而不增加运算量;(4)允许数学宏模输入;(5)程序容易扩充。文中给出了在DJS-6机上计算的例子。其中一个例子,在文献[2]中K.Singhal和J.Vlach认为其规模接近于符号应用有意义的极限。由于本程序在主要方面都具有超过现有其它方法的优点,因此是一个值得向电路设计人员和研究人员推荐的程序。
This article introduces the design and practical application of symbolic network function generator SFGEX. The program is based on the “model method” of network extension theory and is characterized by (1) a small memory footprint that enables processing of medium-sized circuits on minicomputers and minicomputers; (2) Given the results of the local sub-network without increasing the amount of computation; (4) to allow mathematical macro input; (5) the program easy to expand. The article gives an example on the DJS-6 machine. As an example, K.Singhal and J.Vlach in [2] consider their size close to a meaningful limit for symbolic applications. This program is a program worth recommending to circuit designers and researchers as it has the major advantages over other existing methods.