Differentiation 和difference的区别

differentiation跟derivative有什么区别
微分跟微商有什么区别?
各自的定义形式又是什么啊?
谢谢
那为什么书上介绍求导法则的时候写的是differentiation Rules呢?而介绍三角函数求导的时候又用 Derivatives of trigonometric functions

英语翻译
Product differentiation
Packaging has always played its part in distinguishing one manufacturer’s product from another.Its first manifestations-labels-were crafted to do just that.Now the whole differentiation process has become increasingly sophisticated.Whereas graphics once took the lead role in distinguishing one product form anther,structural packaging now plays a major role in brand differentiation.Sometimes this is achieved with shape-the classic Coke bottle being the obvious example-but at other times it’s achieved with color,finish,or materials.Perrier bottles are such a distinctive green that the manufacturers effectively “own” the color green in the bottled water sector.In some sectors,like cosmetics and fragrances,the tactile feel of a particular piece of packaging communicates lifestyle aspirations on a subliminal level.
Lifestyle and behavioral patterns
Packaging's role has also extended in response to consumers' changing lifestyles.For example,people now live more mobile lives and packaging has developed to accommodate this.
In simplistic terms,this has led to the development of travel-size variants of products but it has also led to packaging designed specifically to fit in handbags,briefcases,and other luggage.People also pursue a vast array of interests and,in areas like sport,demand products that not only support their performance but perform in a way that relates to the activity undertaken.Lucozade sports drinks,packaged in metal pouches with drinking nozzles,are a good illustration of this:easy to carry and use,the pack is perfect for sportspeople.As Southgate says:"The whole pack encapsulates relevant brand values (energizing,dynamic,youthful).The whole pack is the brand identity;'
Beyond the functional
For many years certain types of packaging have had a role beyond the purely functional.
Packaging has become something to value in its own right,something to be displayed because it has a certain cachet.The most obvious example of this is perfume packaging where the display of a leading name is de rigueur.In recent years packaging "display" has become part of certain types of design brief as a response to the sheer power of brands and the concomitant status they convey on the owner.Packaging acquires an importance disproportionate to the product itself.Even in
sectors like men's toiletries it is important to understand the role brands play as status badges.Young men,for example,need to feel comfortable using their deodorants in public spaces,such as changing rooms-as the packaging is the brand,it plays a huge role in positioning the brand correctly.

英语翻译
Risks associated with the differentiation strategy include (1) a customer group's decision that the differences between the differentiated product and the cost leader's good or service are no longer worth a premium price,(2) the inability of a differentiated product to create the type of value for which customers are willing to pay a premium price,(3) the ability of competitors to provide customers with products that have features similar to those associated with the differentiated product,but at a lower cost,and (4) the threat of counterfeiting,whereby firms produce a cheap "knockoff" of a differentiated good or service.
Through the cost leadership and the differentiated focus strategies,firms serve the needs of a narrow competitive segment (e.g.,a buyer group,product segment,or geographic area).This strategy is successful when firms have the core competencies required to provide value to a narrow competitive segment that exceeds the value available from firms serving customers on an industry-wide basis.
The competitive risks of focus strategies include (1) a competitor’s,tor's ability to use its core competencies to "out focus" the focuser by serving an even more narrowly defined competitive segment,(2) decisions by industry-wide competitors to focus on a customer group's specialized needs,and (3) a reduction in differences of the needs between customers in a narrow competitive segment and the industry-wide market.
Firms using the integrated cost leadership/differentiation strategy strive to provide customers with relatively low-cost products that have some valued differentiated features.Flexibility is required for the firm to learn how to use primary and support activities in ways that allow them to produce somewhat differentiated products at relatively low costs.The primary risk of this strategy is that a firm might produce products that do not offer sufficient value in terms of either low cost or differentiation.When this occurs,the company is "stuck in the middle." Firms stuck in the middle compete at a disadvantage and are unable to earn more than average returns.

xIny+2y=2x^3 use implicit differentiation to find y'
我算到是y'=6x^2*y-yIny-x/2y
但书上答案是y'=6x^2*y-yIny/x+2y
我怎麼算也算不到x在分母呢,是书错还是我错...

关于数学高数differentiation的问题
我把一道题弄下来
the sketch shows the graph of y=X3-9X2+23X-15
the point P marked on the curve has its x co-ordiate equal to 2.
find
1.the gradient function dy/dx (这个我会做）
2.the gradient of the curve at P(这个我也会做）
3.the equation of the tangent at （这个我不会.）
我第二题做出来是-1
P=(x0,y0) x0,y0怎么求啊

difference,differentia,differentiation有什么区别
是differentia,一个名词
能不能解释得再清楚一点啊,例句弄个简单点的或者付上翻译吧

求解一道用隐函数求偏微分的问题
use implicit differentiation to find (partial Z/ partial X) and (partial Z / partial Y)
公式是：e^z=xyz

Find the implicit differentiation of the function shown below x^3y^2+6xy+5y^3x^2=5
x^3y^2 + 6xy + 5y^3x^2 =5

derivative和differentiation的区别
导数和微分什什么区别
书上说differentiation是曲线上切线的斜率的过程,那不就是求导嘛?
那和derivative有什么不一样?
高中数学书上的求导法则在ALEVEL书上是some rules for differentiation.怎么变成微分法则了啊

differentiation,differentiate,differential 在数学上（微积分）的中文分别是什么?

英语翻译
The MicroRNA miR-124 Promotes Neuronal Differentiation by Triggering Brain-Specific Alternative Pre-mRNA Splicing