共查询到20条相似文献，搜索用时 78 毫秒
1.
改变了教材上微分中值定理的呈现顺序,引导学生通过猜想得到柯西中值定理,再推导出拉格朗El中值定理和罗尔中值定理,启发学生构造合适的辅助函数证明微分中值定理。此外,还探讨了微分中值定理的多元化教学。 相似文献
2.
本文对理解微分中值定理中的易混淆问题和微分中值定理应用中的易混淆问题进行了归纳和分析,帮助学生准确地理解微分中值定理的知识. 相似文献
3.
4.
根据数学教学实践，从微分中值定理的条件及宽松的应用环境，定理的实用性，定理证明方法的数学思想三个方面探讨了微分中值定理的教学功能，提出了做好微分中值定理授课应注意的环节和方法． 相似文献
5.
6.
李元中 《甘肃广播电视大学学报》1997,(4):46-47
微分中值定理是数学分析中的重要定理。通常在教材中讲述的有拉格朗日定理、柯西中值定理、泰勒公式等。其实，除了这些定理之外，还有许多微分中值命题。通常对于这些微分中值定理的证明，都是各自采用不同方法证明的。我们在[1]中给出了一种统一证法。只要按照一种固定的程式，就可以使一类微分中值命题，得到机械的证明，无需分别寻找特殊的技巧。这种机械的证法除了可以证明现有的命题外，还可以使人们从中得到启示，从而构造出新的微分中值定理。 相似文献
7.
利用微分中值定理和泰勒公式研究微分中值定理中值点的渐近性质,给出了一元函数Cauchy中值定理以及二元函数微分中值定理中值点渐近性的新的充分条件,推广并完善了最近的一些结果. 相似文献
8.
《洛阳师范学院学报》2019,(2)
微分中值定理是一系列中值定理的总称,是研究函数的有力工具.本文利用微分中值定理及闭区间上连续函数的性质,将原有的微分中值定理进行推广,给出新的微分中值定理,并通过实例说明新的中值定理的有效性. 相似文献
9.
10.
邓勇 《楚雄师范学院学报》2009,24(3)
微分中值定理是微积分学中的重要定理,其中柯西中值定理的应用尤为广泛,本文将涉及两个光滑函数的柯西微分中值定理推广到了n个光滑函数的情形,得到了类似的微分中值公式. 相似文献
11.
12.
《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
13.
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
14.
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
15.
16.
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
17.
Rajesh Kanoi 《海外英语》2007,(1):52
Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer. 相似文献
18.
正A One day a pig went to the stable(马棚)to see his good friend,an oldhorse,and was going to stay there forthenight.Night came and it was time forsleep.The pig went into the straw heap(稻草堆)and lay comfortably.A longtime passed,but the horse was stillstanding there and did not move.Thepig asked the horse why he did not go tosleep."Standing like this is the begin-ning ofsleeping,"answered the horse. 相似文献
19.
《今日中学生》2014,(9)
正1.Any fool can count the seeds in an apple.Only God can count all the apples in one seed.2.Happy families are all alike;every unhappy family is unhappy in its own way.3.Memories are the key not to the past,but to the future.4.Sometimes in the dark you see what you want to see.5.There is a great difference between 相似文献
20.
《重庆大学学报(英文版)》2014,(2)
正Scope and Policy The Journal of Chongqing University-English Edition(JCQU-E)is a peerreviewed journal publishing research articles in multiple disciplines of science and technology,covering civil and environmental engineering,chemical engineering,biotechnology,mechanical and electrical engineering,computer and data processing,mining,metallurgy,materials science,and interdisciplines thereof. 相似文献