英语释义

• ratio of the opposite to the adjacent side of a right-angled triangle

• a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point

片语

internally tangent内切的；内切，内切线

inverse tangent[数] 反正切

Tangent Universe离线宇宙

tangent space[数] 切空间；切丛；切线空间

base tangent length公法线长度

tangent method切向法；切线法；[数] 正切法

polar tangent[数]

tangent pump切线增压泵

tangent plane切面相切平面

tangent vector正切向量，切矢量

Tangent Angle[数] 正切角

hyperbolic tangent[数] 双曲正切

arc tangent[数] 反正切

tangent distance[测] 切距；切线长

Project Tangent曲线切线调整

tangent length切线长度；切线长

tangent modulus[机] 切线模量，切线模数；正切模量；地基应力和变形切线模量

loss tangent损耗因数；[电子] 损耗角正切

tangent point[建][数] 切点；切向点

tangent line[数] 切线，正切

英汉例句

• 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。

• 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。

• 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。

• that「s the equation of a tangent plane.

  这就是切平面的方程。

• 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？

• 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。

• the direction is tangent to the trajectory.

  方向就是轨道的切线方向。

• that is how we get the tangent plane.

  这样我们就得到了切平面。

• then actually there are ways you can use basically differentials and constrained partials to figure out what the tangent vector to the curve is and so on.

  然后，可以用微分关系,或受约束的偏微分来表示,曲线的切向量，就是这样了。

• 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。

• 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。

• in the case of curves, we made that choice by deciding that because we were going along some direction on the curve we could choose one side by saying let「s rotate clockwise from the tangent vector.

  正如在曲线的情形中那样做出的选择,那是当沿着曲线行进时,可以用绕着切向量,顺时针旋转来规定正向。

• 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。

• so, it doesn」t look very tangent because it crosses the surface.

  它看上去并不是十分地相切,因为它穿过了曲面。

• 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。

• 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。

• 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。

• 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。

• 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。

• 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。

• a tangent is a straight line that just touches a curve, so the concept of 「running the tangents」 is to run the shortest distance possible by running straight from one curve to the next.

  切线是一条直线，刚好接触到曲线，所以跑切线是从一个弯道跑到另一个最短的距离。

• it is really the tangent plane.

  它确实就是切平面。

• 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。

• 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。

• what i do at any point is project f to the tangent direction, i figure out how much f is going along my curve and then i sum these things together.

  我所做的就是把f投影到切向量方向上，得出f沿着曲线的值,然后再把这些加起来。

• and, here's a tangent plane at the given point.

  在这个给定的点有一个切平面。

• 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？

• 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。

相似词

connected连接（connect的过去式）