Mathematica初学者提问,请问在mathematica中我这样的写法在语法上错误出在哪?

作者&投稿:枝瞿 (若有异议请与网页底部的电邮联系)
mathematica自检报错~

括号使用错了花括号改成圆括号另外好像没出结果

NIntegrate这函数是用于数值计算的函数,积分的上下限也必须是数字,不能含字母。

mathematics的集合都是以花括号的形式处理的!




英语名言加翻译和分析
(Alfred North Whitehead, British philosopher and nathematician)世界的悲剧就在于有想象力又缺乏经验,而有经验的人又缺乏想象力。(英国哲学家、数学家 怀特海 .A . N.)The great difficulty in education is to get experience out of ideas. (Grorge Santayana, Spain-born American philosopher and poet)教育...

placessuitableforoutinginshenzhen英语怎么说?
in the Futian District in 2004 for the International Garden Exhibition, has many gardens of various styles, artificial ponds and waterfalls, a pagoda, pavilions, and statues. The Shenzhen Bay Park opened in 2011 which included the nearby Mangrove Park. There are several thematic ...

求关于(西风颂)的参考文献
Analysis of Percy Shelley’s “Ode to the West Wind”In 'Ode to the West Wind,' Percy Bysshe Shelley tries to show his desire for transcendence, by explaining that his thoughts and ideas, like the 'winged seeds' are trapped. The West Wind acts as a force for change and ...

【北大学霸经验】快速提升英语口语、听力水平!语言学理论切入~
"Thematic meaning refers to what is communicated by the way in which the message is organized in terms of order and emphasis."语用学(Pragmatics)切入听力口语中非积累不可为的莫过于习语(idiom)和固定搭配(collocation)啦 Idiom is a set phrase with semantic unity and structuralstability, such as:Do...

make a poster about sports ,写一篇英语作文,要求原创
How to make an excellent psoter about sports?firstly,you should know what colors reflect the sports.we know sports mean energy and power.so the color like orange or red which should be used as the thematic color of the poster.sencondly,you need have great ideas and inspiration ...

求翻译!!!
the ultimate recreational facilities will take you to the speed of a Barry's high-speed into the 400-foot height.NO.10 located in Copenhagen, Denmark "提弗利Garden" Tivoli Gardens, was founded in 1843, is the world's seventh of the number of amusement parks. Extraordinary is th...

玻璃屋的秘密详细资料大全
基本信息,演职员表,制作\/发行,上映日期,幕后\/花絮,剧情简介, 基本信息 幅面: 35毫米胶片变形宽银幕 混音: 杜比数码环绕声 SDDS 评级: Rated PG-13 for sinister thematic elements, violence, drug content and language. 级别: Singapore:PG Portugal:M\/12 Argentina:13 Germany:16 Iceland:16...

人们喜欢收集那些东西 收集这些东西有多长时间了 以Collections为题写一 ...
philatelic of a variety of stamps would probably make more sense.Thematic philatelic would limit your stamp collection to a single subject or country. To begin with you should opt选择 for a more general topic for stamp collection. To start with, gather stamps from all possible areas...

以“啥是佩奇”为主题。写一遍不少500字的英语作文
1、充分准备。打好基础。为了提高书面表达水平,平时应加强阅读,看一些自己感兴趣的人物传记或者新闻记事,可以背诵一些句型、段落甚至短文。语言的学习其实都是相通的,“熟读唐诗三百首,不会作诗也会吟”。只要读得多了、背得多了,自然可以出口成章,下笔成文。平时用英文写信、记日记等都是学生力...

in other words:a coursebook on translation
4.3 A brief note on word order 4.4 Introducing text Exercises Suggestions for further reading Notes 5 Textual equivalence:thematic and information structures 5.1 A general overview based on the Hallidayan approach to information flow 5.2 The Prague School position on information flow:...

秀洲区19110919923: mathematica 初学者的小问题 -
势亚小儿: 题目2要求你在Basic Calculations Palette帮助下输入题目1中的内容.可是Mathematica中并没有一个叫Basic Calculations Palette的Palette(至少在第8版中),我猜题目可能指的是Basic Math Assistant.如果确实是Basic Math Assistant,请按如下步骤完成题目:首先Mathematica有一个菜单叫Palettes,菜单中有一个Basic Math Assistant.点击它打开Basic Math Assistant(屏幕右侧一个小窗口).光标放在Notebook上.在右侧窗口中寻找你需要的表达式部分,点击你需要的部分,完成输入.

秀洲区19110919923: Mathematica初学者提问,请问在mathematica中我这样的写法在语法上错误出在哪? -
势亚小儿: mathematics的集合都是以花括号的形式处理的!

秀洲区19110919923: mathematica新手提问 能不能把方程里面的变量 设定范围 然后把每个对应的值都列出来 -
势亚小儿: 你需要纯函数和Map(咦怎么好像前两天说了一样的话?):list = Range[0.25, 4, 0.05]; Solve[(a + b) (a - b)/((a + b + x) (x - a)) ==2.71828^(14.66 - 16397.6/1000)/# && (a +b) b/((x + a + b) (a - b)) == 2.71828^(13.5 - 21252/1000)/# && a - b == ...

秀洲区19110919923: mathematica 定义函数时变量不能带下标吗? -
势亚小儿: 对,不行.至于为什么,模式匹配时其代表的变量应符合普通变量命名规则,而l1下标的FullForm是Subscript[l, 1]是一个式,显然不行.不过我不知道这个解释你是否能满意,从你写的代码来看可能刚接触mathematica吧,函数的立即赋值与延迟赋值,sin/cos的写法和用法都充满了问题,我不知道你能否明白模式匹配的概念?如果真是初学者,记住这样一点总是没错的:mathematica毕竟是一门编程语言,最好用让计算机容易理解而不是人类容易理解的文字来写作.如上面代码,直接用l1,l2比用下标要简单有效的多,表示幂可以用^2而不是用上标.这样就算提问也可以直接发代码而不是发图片,方便大家复制到程序中检查.

秀洲区19110919923: Mathematica中下标不能用区分变量吗 -
势亚小儿: 模式匹配时其代表的变量应符合普通变量命名规则,而l1下标的FullForm是Subscript[l, 1]是一个式,显然不行.

秀洲区19110919923: 在Mathematica8.0中怎么调用自己建的程序包? -
势亚小儿: 输完了Endpackage[]之后,就可以输入shift+enter运行,如果输入的程序包没有错误就会顺利运行,之后直接输入需要用到的指令如 Rijk 而不必输入可以这样测试 ?Rijk 然后运行,如果程序包成功导入了就会显示出Rijk的函数信息 如果想以后使用可以保存成后缀是.m的文件,mathematica可以直接打开的,而且可以直接运行,在后面输入运算

秀洲区19110919923: matlab或mathematica中三变量函数f(x,y,z)怎么画啊?用渐变颜色表示第4个变量的大小. -
势亚小儿: 例如绘制三维曲面图z=sinx^2+cosy^2,x属于[0,pi],y属于[0,pi/2] [x,y]=meshgird(0:pi/100:pi,o:pi/100:pi/2); z=sin(x.^2)+cos(y.^2); mesh(x,y,z); axis([0 4 0 1.8 -1,5 1,5]); colormap(hsv) 望采纳!!!!

秀洲区19110919923: Quant 应该学习哪些 Python 知识 -
势亚小儿: Python是非常适合做quant类工作的语言,本身就是科学计算方面的统治级语言,现在加入了IPython,pandas等重量级神器,为Quant类工作量身定做,而且仍在飞速发展中,以后会越来越重要...

秀洲区19110919923: mathematica 9用动画来演示产生旋转曲面的过程不能运行 -
势亚小儿: ……谁告诉你可以用这个方法来演示动画的?而且你的变量又没和图形的自变量相关联,怎么可能动?起码也这样吧?:Animate[ParametricPlot3D[{Sin[z]*Cos[u], Sin[z]*Sin[u], z}, {z, 0, Pi}, {u, 0, i}, AspectRatio -> 1, AxesLabel -> {"X", "Y", ...

秀洲区19110919923: Mathematica软件下图形的组合与叠加方法之二Overla?
势亚小儿: 方法 1、另外一个可以进行叠加操作的函数是, Overlay 版本 8 引入的一个新函数. 请注意, 他可以进行任意表达式的叠加, 不仅仅局限于图像和图形之间, 甚至表达式和...

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