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AUTOLISP语言在非标准零件CAD中的应用
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作者 顾炳根 《兵工自动化》 1991年第Z1期33-36,共4页
AUTOCAD是目前国内在微机上应用最多的CAD绘图软件。它具有较强的绘图功能,并自身带有程序语言AU-TOLISP,该语言最大的特点是在图形编辑中使用,并可执行AUTOCAD的全部命令,对已画的图形可以提取属性,进行修改,或利用其属性进行下一步的... AUTOCAD是目前国内在微机上应用最多的CAD绘图软件。它具有较强的绘图功能,并自身带有程序语言AU-TOLISP,该语言最大的特点是在图形编辑中使用,并可执行AUTOCAD的全部命令,对已画的图形可以提取属性,进行修改,或利用其属性进行下一步的图形编辑,具有较强的运算功能矢量运算、表处理功能,较强而方便的字符串处理等。用它进行应用软件的二次开发,具有广阔前景。 展开更多
关键词 非标准零 AUTOLISP语言 命令 多次操作 画线 参考点 图形编辑 AUTOCAD 中心线 安装孔
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Nonzero-sum games for continuous-time Markov chains with unbounded transition and average payoff rates 被引量:2
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作者 ZHANG WenZhao GUO XianPing 《Science China Mathematics》 SCIE 2012年第11期2405-2416,共12页
This paper attempts to study two-person nonzero-sum games for denumerable continuous-time Markov chains determined by transition rates,with an expected average criterion.The transition rates are allowed to be unbounde... This paper attempts to study two-person nonzero-sum games for denumerable continuous-time Markov chains determined by transition rates,with an expected average criterion.The transition rates are allowed to be unbounded,and the payoff functions may be unbounded from above and from below.We give suitable conditions under which the existence of a Nash equilibrium is ensured.More precisely,using the socalled "vanishing discount" approach,a Nash equilibrium for the average criterion is obtained as a limit point of a sequence of equilibrium strategies for the discounted criterion as the discount factors tend to zero.Our results are illustrated with a birth-and-death game. 展开更多
关键词 nonzero-sum game expected average criterion Nash equilibrium unbounded transition rates unbounded payoff function
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