| 释义 |
tan·gent 英ˈtændʒənt美ˈtændʒəntAHDtănʹjənt ☆☆☆☆☆高ＧＭＳ八ＴCOCA⁴³⁷⁰⁴BNC³⁸³¹⁸iWeb¹⁷⁰⁰²
基本英英词源搭配记法近义反义派生词例句Thesaurus例句
adj.接触的⁴;相切的⁷;离题的⁴n.切线⁵⁸;正切²⁵;突然的转向²音乐击弦金属小片.复数tangents
偏离图形上的附属品数学
Noun:
a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that pointratio of the opposite to the adjacent side of a right-angled triangle来自拉丁语 tangere,接触，触摸，来自 PIE*tag,接触，触摸，安排，词源同 integer,contact.后 用于数学术语指正切，切线。arc tangent反正切fly off on a tangent突然离题go off at a tangent跑题,突然做起其他事…fly off at a tangent沿切线方向飞出越出…tangent vector切矢量tangent scale电正切刻度标度…tangent modulus正切弹性模数,切线模…tangent wedge切向楔common tangent公切线tangent elevation正切仰角tangent point切点tangent line切线tangent galvanometer正切电流计tangent key切向键tangent distance切距,切线长度…tangent screw切线螺旋tangent welding多极平行弧焊…tangent angle正切角tangent plane切面相切平面…tangent bender切线折弯机
[方振宇词汇奥秘tang(接触+ent名词后缀，表示物→切线就是刚好tang接触到一条曲线上一个点的一条直线
比较记忆tangentialadj.切线的，正切的tang接触+ent名词后缀，表示物⇒切线就是刚好tang接触到一条曲线上一个点的一条直线GRE难词记忆tangent→tang=to touch 接触，触摸+ent→touching line→切线GRE难词记忆tangent→antigen n.抗原→他所接触的抗原词根记忆tang+ent近义词 line线curve曲线angle角度tan棕褐色curvature弯曲refraction折光connected相关的
Pcotangentn.余切Psubtangentn.次切距Pexternally-tangent外切Ptangentiala.切线的相切的正切的离题的扯远的
名词100%
用作形容词Some examples are given by inscribed and circumscribed circles ofpolygons, lines intersecting andtangenttoconic sections, thePappusandMenelausconfigurations of points and lines.一些例子所给予者和限制各界的多边形，线相交和相切的圆锥部分，帕普斯和墨涅拉俄斯配置的点和线。用作名词The graph of a concave function is always below itstangent.一个凹函数的图象总在它的切线的下方。
Both of approaching and returning movements are along thetangentof the circle.绕转之后移动方向为自南向北，也是沿圆周的切线运动。
Thetangentmay be used to find the direction.这方向也可用正切求得。
Store normals in generic space, e.g., Tangent Space.存储非普通空间的法向量，例如，正切空间。adj.touching
同义词 contiguous,tangential
asidenoun confidential statement
departure,digression,discursion,interpolation,interposition,parenthesis,throwaway
blind alleynoun closed-off passage
blank wall,cul-de-sac,dead end,dead-end street,impasse,tangent
deviatingadjective divergent
aberrant,aberrative,circuitous,devious,excursional,excursionary,excursive,heteroclite,obliquitous,parenthetical,serpentine,straying,tangent,tangential,tortuous
excursusnoun digression
aside,departure,detour,deviation,divagation,divergence,divergency,obiter dictum,side remark,tangent
gradenoun incline, slope
acclivity,ascent,bank,cant,climb,declivity,descent,downgrade,elevation,embankment,gradient,height,hill,inclination,inclined plane,lean,leaning,level,obliquity,pitch,plane,ramp,rise,slant,tangent,tilt,upgrade
irrelevancynoun digression
apostrophe,aside,deflection,departure,detour,deviation,difference,discursion,divagation,divergence,divergency,diversion,drifting,episode,excursion,excursus,footnote,incident,note,obiter dictum,parenthesis,rambling,tangent,variation,wandering And, here's a tangent plane at the given point.
在这个给定的点有一个切平面。163
And, in some cases, for example, if you know that the vector field is tangent to the curve or if a dot product is constant or things like that then that might actually give you a very easy answer.
例如，在某些情况下，如果已知向量场与曲线相切,或者内积是一个常数等等,那么结果将会很简单。163
And visually what we're accomplishing is somehow to take the hyperbola, and take a point on the hyperbola, and figure out some tangent line.
从视觉上看，我们要做的是，想办法，在这个反函数，在反函数上取一个点，设法找出切线。 ecocn
The direction is tangent to the trajectory.
方向就是轨道的切线方向。163
The green spiral is made from quarter- circles tangent to the interior of each square, while the red spiral is a Golden Spiral, a special type of logarithmic spiral.
绿色螺旋线由内部每一个正方形和四分之一圆相切线构成，而红色的螺旋线是黄金螺旋线，它是对数螺旋线的一种特殊类型。 yeeyan
Well, one way to think about it is in terms of tangent plane approximation.
我们可以从用切平面逼近的想法来入手。163
Well, that means the gradient is actually perpendicular to the tangent plane or to the surface at this point.
那意味着，梯度向量在这点上,垂直于切平面或者是等值面。163
And so, in particular, if we set this equal to zero instead of approximately zero, it means we'll actually be moving on the tangent plane to the level set.
而且，特别地，如果我们令此函数为零，而不是近似为零，它意味着我们在水平集的切平面上移动。163
Another way to say it, and I think that is probably closer to the truth, is that these things are somehow placeholders to put values and get a tangent approximation.
换种我认为更贴近事实的说法，它们是通过赋值而得到切线的近似值的,一种占位符。163
But, the dominant motion, near the origin is really where it goes down and back up, so answer number four, you have vertical tangent.
不过主要的运动，在原点附近的话,是向下再向上的，所以答案是第四个，有一个垂直的切线。163
But, actually, that is not true because here the circle is tangent to the axis.
但实际上，这是不对的,因为这个圆与这个坐标轴相切。163
If it is tangent to the circle it doesn't have any normal component.
如果相切的话，就不会有法向量方向的分量。163
If we were moving on the tangent plane, this would be an actual equality.
如果我们在切平面上移动,这将会是一个真正的等式。163
If you want strict equalities in approximations means that we replace the function by its tangent approximation.
如果你想要严格的近似等式,那就意味着我们要用切线逼近来取代原函数。163
It has a hat because it's a unit vector, and T because it's tangent.
这上面有一个帽子表示它是单位矢量， T表示它是切线。163
It is really the tangent plane.
它确实就是切平面。163
Now, if I have two lines tangent to the surface, well, then together they determine for me the tangent plane to the surface. Let's try to see how that works.
现在，假设曲面上有两条相交切线，那么这两条切线可以确定一个切平面,我们来看看这个平面是怎么搞出来的。163
OK, so now if you have a surface given by an evil equation, and a point on the surface, well, you know how to find the tangent plane to the surface at that point OK, any questions?
如果有一个由有点恶心的方程确定的曲面，以及在曲面上的一个点，你应该知道，如何找到这点处的切平面了,有问题么？163
Say you have a minimum, well, the tangent plane at this point, at the bottom of the graph is going to be horizontal.
如果你说这是个极小值，那么这点的切平面应该是水平的。163
See the point in the middle, at the origin, is a saddle point. If you look at the tangent plane to this graph, you will see that it is actually horizontal at the origin.
我们来看中间的那个点，在原点上，那就是一个鞍点，在这点做一个切平面,你可以看到这个切平面,是在原点上水平的。163
So, on the unit circle, F is tangent to the curve.
也就是，在单位圆上， F是曲线的切线。163
SVG can turn an image so it always faces the tangent of the line it is following.
SVG可以使图像转向，以便它总是面向它所移动方向的切线。 ibm
That is how we get the tangent plane.
这样我们就得到了切平面。163
That also tells us how to find tangent planes to level surfaces.
这其实也告诉我们，怎样找等值面的切平面。163
That means that you want to pick, ultimately, a point on this-- this line is tangent to the efficient portfolio frontier with all the other assets in it.
那意味着你会最终会在这上面选一个点-,这条直线是与有效边界相切的,后者包含了所有的资产组合。163
That's the equation of a tangent plane.
这就是切平面的方程。163
We are replacing the graph by its tangent plane.
我们用函数的切平面来替代它的图像。163
We know that the gradient is perpendicular to this vector that's tangent to the level surface What about other vectors tangent to the level surface?
我们知道梯度向量垂直于这个向量,而速度向量是相切于等值面的,其他相切于等值面的向量，又如何呢？163
You could easily argue that a majority of products are primarily tools of purpose, and thus Tangent is their true form language.
你可以很容易地争辩说，大部分的产品的首要目的就是完成作为工具的使命，所以正切就是真正属于它们的造型语言。 yeeyan |