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陈卫宏 《现代远程教育研究》1997,(11)
1 行列式1.1 复习要求了解n阶行列式的定义。掌握行列式的性质,特别是性质3和性质7。知道余子式和代数余子式的概念及记法。熟练掌握行列式的计算,主要是计算4阶数字行列式和3阶带参数的行列式。1.2 本章重点行列式的性质和行列式的计算。1.3 疑难解析1.3.1 行列式的性质计算行列式的值需要利用行列式的性质,在行列式的性质中性质3和性质7对计算行列式的值显得尤其重要。 相似文献
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赵坚 《现代远程教育研究》1999,(11)
1 n 阶行列式1.1 内容重点行列式的性质和行列式计算。1.2 复习要求了解 n 阶行列式的定义。掌握行列式的性质,特别是性质3和性质7。(3)知道余子式和代数余子式的定义和记法。(4)熟练掌握行列式的计算。主要是计算4阶行列式和3阶带参数的行列式。1.3 重点内容解析1.3.1 行列式的性质理解并掌握行列式的性质对于计算行列式是十分重要的。在行列式的七个性质中,性质3(即行列式可按其 相似文献
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1 n阶行列式 1.1 内容重点 行列式的性质和行列式计算。 1.2 复习要求 了解n阶行列式的定义。 掌握行列式的性质,特别是性质3和性质7。 (3)知道余子式和代数余子式的定义和记法。 (4)熟练掌握行列式的计算,主要是计算4阶行列式和3阶带参数的行列式。 1.3 重点内容解析 1.3.1 行列式的性质 理解并掌握行列式的性质对于计算行列式是十分重要的。 在行列式的七个性质中,性质3(即行列式可按其任一行(列)展开)可以作为行列式定义的推广,它比 相似文献
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赵坚 《现代远程教育研究》1996,(8)
第一章行列式1 本章重点内容1.1 行列式的性质学习本章要了解行列式的定义,n 阶行列式是一个数或是一个代数式,知道余子式和代数余子式的概念及写法。理解并掌握行列式的性质,毫无疑问,行列式的性质对于我们了解并计算行列式都是非常重要的,特别是性质3和性质7。 相似文献
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第一章 行列式 1 本章重点内容 1.1 行列式的性质 学习本章要了解行列式的定义,n阶行列式是一个数或是一个代数式,知道余子式和代数余子式的概念及写法。 理解并掌握行列式的性质,毫无疑问,行列式的性质对于我们了解并计算行列式都是非常重要的,特别是性质3和性质7。 1.2行列式的计算 相似文献
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1 n阶行列式1.1重点内容 行列式的性质和行列式的计算。1.2 复习要求 （1）了解n阶行列式的定义。 （2）掌握行列式的性质,特别是性质3和性质7。 （3）指导余子式和代数余子式的定义和记法。 （4）熟练掌握行列式的计算,主要是计算4阶行列式和3阶带参数的行列式。 相似文献
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理工科第一学期《线性代数》的电视授课为27学时,主要讲授文字教材前三章全部内容和第四章的一些基本概念和方法,重点是前三章的内容.第一章 行列式重点:行列式性质,行列式的计算方法,其中主要掌握四阶以下行列式的计算.难点:n阶行列式的定义,行列式的一些性质.要求:1.了解n阶行列式的定义.2.掌握行列式的性质,特别是性质3和性质7. 相似文献
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关于非交换环上的拟行列式 总被引：1，自引：0，他引：1
在非交换环上,引进拟行列式的概念.首先,讨论拟行列式的某些性质.在一般的非交换环上,拟行列式不能成为行列式.然后,讨论*—对称矩阵的拟行列式的一些性质. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献