The threshold is called theta.
阈值称为theta。
当 a >=theta 时y=1，反之 y=0。
So there's no restriction on theta.
在θ上没有限制。
With the chain rule, gives me a theta dot.
根据链式法则，我得到θ点。
Notice it's no longer even a function of theta.
注意，它不再是,关于θ的函数。
But, we have the constraint, a equals b cosine theta.
但是我们有约束条件，a=b*cosθ
So, that means what you're doing is you're fixing the value of theta.
就是说，要做的是固定θ的值。
Well, we do that by figuring out how b depends on theta when a is fixed.
,算出了b是在a不变的情形下，它是怎样依赖于θ？
Analysis of theta reference is important in interpreting utterance meanings.
题元名词项指称的分析是解读语句意思的一项重要内容。
This number can be larger than zero >0 if the sine theta is larger than zero.
这个数字可以大于,只要sinθ
P. S by theta I mean average case, not the worst case scenario you mentioned.
我平均的情况下，不是最坏的情况下你所提到的。
dxdy Last time I told you if we have dx dy we could switch it to r dr d theta.
上一次课提到，如果给出,我们可以把它转换为rdrdθ
The two flips out, which eats up this two, so I get mg R and then I get a theta.
这两个没用了，被抵消，所以得到mgR和θ
Since there is no acceleration in the y direction, the normal force must be also mg cosine theta.
既然在y方向上,没有加速度，法向力也等于mgcosθ
So, we set this to be zero. Theta, well, we are very happy because we want to express things in terms of theta.
所以我们令它等于零，很好，我们很高兴，因为我们就是想用θ来表示。
This is a constant, and so you're going max to get theta equals theta maximum times the cosine omega t plus phi.
这是不变的,所以得到θ=θ,乘以cosωt+π
The ideation that can take place during the theta state is often free flow and occurs without censorship or guilt.
波状态是当工作变得非常机械，以至于你在内心可脱离它时产生的。
So it is this component, v cosine theta - which we call the radial velocity-- that is minus 100 kilometers per second.
这个成分，是vcosθ,我们叫做径向速度-,等于-100，公里每秒。
Meanwhile, the anti-X particle decays either to an antineutron or to two "hidden" antiparticles: anti-Y and anti-theta.
同时，一个反“X”粒子要么衰变成一个反中子，要么衰变成两个未知的粒子：反“Y”粒子和反“θ”粒子。
Say, polar coordinates. Let's say that I have a function but is defined in terms of the polar coordinate variables on theta.
比如说极坐标，有一个函数,是根据极坐标θ定义的。
Or, the other way around, I have a function of x and y and I want to express it in terms of the polar coordinates r and theta.
反过来，有一个关于x和y的函数,也可以表示成极坐标r和θ
So, it is possible to treat -1 as a constant input whose weight, theta, is adjusted in learning, or, to use the technical term, training.
所以，我们可以把-1看成一个常量输入，它的权系数theta在学习（或者用技术术语，称为 培训）的过程中进行调整。
Finally, as you move into REM sleep, your brain is as busy as it was during the day, firing theta waves with burst of alpha and beta.
最终当你进入快速眼动睡眠，你的大脑还是跟白天一样忙，通过和波的爆发激活波。
Don't get things mixed up, just the z component of the force becomes Gm triple integral of delta cos phi sine phi d rho d phi d theta.
不要搞混，只是力的z分量罢了,它是Gm∫∫∫δcosφsinφdρdφdθ
Of course, r goes all around the z axis, but I'm just doing a slice through one of these vertical half planes, fixing the value of theta.
当然，r可以围绕z轴转圈，但我只做了一个垂直的半平面，对于一个确定的θ来说。
It changes in whatever way it has to change so that when theta changes, a stays the same while b changes so that we keep a right triangle.
它按着既定的方式改变,因此当θ改变时，a保持不变，同时b改变,从而我们保持为直角三角形。
So if we twist it too much up, then, of course, we will permanently deform it, and then the period will not be independent of theta maximum.
如果转动过度，当然，会永远毁坏的，那么周期和,θ最大值相关。
OK, so if I change theta a little bit in this one, if I change theta a little bit and I keep a the same, then b has to change also in some way.
如果我在这里稍微改变θ的话，如果我稍微改变θ，同时a保持不变，那么b也会在某种程度上变化。
In order to more clearly show angles . theta. and . phi. in FIGS. 5A and 5B, the acoustic drivers are shown with little overlap in a top view.
为了在图5A和图5B中更加清晰地显示角θ和φ，在俯视图中所示声学驱动器重叠很小。
In order to more clearly show angles . theta. and . phi. in FIGS. 5A and 5B, the acoustic drivers are shown with little overlap in a top view.
为了在图5A和图5B中更加清晰地显示角θ和φ，在俯视图中所示声学驱动器重叠很小。
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