Mathematica软件在高等数学教学中的运用

Mathematica软件具有强大的数值计算、符号计算、绘图、程序设计等功能，高等数学教学中引入Mathematica软件作为教学的辅助工具，可解决学生数学运算问题，函数的图形绘制问题等，提高学生的数学分析能力和解决综合应用问题的能力．     

Excel2003函数编程实现工程数学矩阵类运算的自动化处理

本文以Excel2003办公软件为平台,以其自带函数为工具,介绍了Excel应用于工程数学矩阵类相关运算的新方法——Excel函数编程法。通过工程数学教材中的实例计算,详细说明了自动生成运算结果的编程过程,并将该方法比对数学软件Mathematica进行分析。     

在Mathematica中用Table函数生成数组问题的探析

随着计算机的普及,数学用表逐渐成为历史。Mathematica强大的、高精度的数值计算功能为数学研究和数学实验提供了一个强有力的工具。因此探析在Mathematica中应用Table函数生成数组问题的格式、功能和适用范围就显得十分必要。     

浅谈Mathematica软件在数学教学中的应用

Mathematica软件具有强大的数值计算、符号计算、绘图、程序设计等功能,数学教学中引入Mathematica软件作为教学的辅助工具,可解决学生数学运算问题,函数的图形绘制问题等,还可以应用于数学实验教学,提高学生的数学分析能力和解决综合应用问题的能力.     

弱数学功能软件在高等数学实验中的应用

几何画板、Excel是相对于Matlab、Mathematica、Maple等软件而言的弱数学功能软件。使用弱数学功能软件进行数学实验,实验条件容易满足,易于推广、扩大学生受益面。文章通过圆周率的计算、定积分的"黎曼和"、方程的近似解与迭代法等例子,探索Excel的常用功能在数学实验中的应用。     

初等数学在数字图像处理中的应用两例

文章给出了数字图像在数学软件Mathematica中的描述形式.在充分利用Mathematica对矩阵处理优势的基础上,展示了最基本的线性函数在数字图像的伪装与融合、水印添加与清除中的应用,给出了图像处理软件Photoshop中“极坐标化”滤镜的数学原理与Mathematica中的实现方法.案例的给出,充分展示了简单数学知识所带来的视觉效果与应用价值.     

介绍Mathematica软件的使用

Mathematica软件是研究数学问题的软件，具有良好的作图与数值计算功能，能进行多项式的计算、因式分解、展开，能进行有理式的计算、求解有理式方程的根，能进行向量及矩阵的计算，能进行极限、导数、积分、级数的有关计算，求解常微分方程等等．使用Mathematica软件，可以画出一元、二元函数的图形，通过图形可以得到函数的某些特性．但在作图方面，由于计算机显示的局限性，如选择不适当的显示区间，会使函数“丢失”一些重要的特征，造成图形失真，在数值计算方面有时还会产生误导，出现错误的结论等等．在软件的使用中，要结合数学基础知识，进行适当的计算，判断与整舍，结合软件的特点，可以较好地解决这些问题．     

Mathematica软件在数学教学与科研中的应用

Mathematica自面世以来,在科技及其他领域产生了深该影响,现已被广泛应用于解决各种教学的应用型问题,特别对于大型的数值计算更是一个不可缺少的工具.本文基于数学软件Mathematica5.2的特点,结合数学教学与科研的需求,讨论Mathematica在数学教学与科研中的应用.     

数学软件Mathematica在数学试验教学中的应用

讨论数学软件Mathematica强大的绘图功能和计算功能在数学教学和数学试验中的作用和效果。通过具体的实例来说明数学软件Mathematica在实验教学中的重要意义。     

Mathematica在普通物理实验中的应用

Mathematica是有很强数值计算功能的软件，本文介绍了Mathematica软件在普通物理实验中对数据处理、数据拟合和演示物理现象等方面的应用。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

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?     

Western and Eastern culture differences in commercial field

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.     

只要努力,不要后悔

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.     

浅谈移民问题

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.     

风的曲线

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.     

Sister Carrie, an Adherent of Desires

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.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…