y OK, so let's say that we have a function of two variables, x and y.
假设有一个函数含有2个变量x和。
So, we said when we have a function of two variables, we have the gradient vector.
我们说，当一个二元函数存在时，就有梯度向量。
Life can be people need to have a function, people pay, is the most enjoyable life.
人生能被人需要，能够有份功能，为人付出，才是最愉悦的人生。
Now you have a function that allows you to easily build whatever kind of tables you wish.
现在，有了一个可以简单地构建任何想要的表的函数。
So, you'd say, oh, it's easy. Let's just integrate, except you don't have a function.
那么，你会说那很简单，积分就可以了，除非你不知道函数是什么。
You have a function that you want to switch between rectangular and polar coordinates.
把一个函数，在直角坐标和极坐标中转换。
The whiskers have a function of improving mechanical property of the keratin membrane.
晶须具有改善角蛋白膜机械性能的作用。
So, in the example below, we have a function that checks the node type of the next sibling node.
在下面的案例中，我们将书写一个用于检测下一个同属节点的 节点类型的函数。
Three of the play he slipped end-over-end detail structure? What are those? Each have a function?
三涵管管身的细部构造有哪些？各有什么作用？
Once we have a function, it is much easier to filter on different data sets and fluctuation thresholds.
一旦我们拥有了一个函数，对不同的数据集和波动临界点进行过滤就简单多了。
All right, so let's try to do an example where we have a function that depends on variables that are related.
好的，我们来做一个例题，有一个依赖于相关变量的的函数。
The results suggest that BPP may have a function to stabilize membrane fluidity of pancreatic exocrine cells.
结果提示，牛胰多肽有稳定胰腺外分泌细胞膜流动性的功能。
All these have a function to perform in prayer, for the whole person is called to share in the total act of worship.
所有这些都在祈祷中发挥作用，因？整个人都被召唤分享整个崇拜的行动。
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
The cholesterol for contain in milk not Gao, but milk in the milk contain pure and sour still have a function of repress the cholesterol.
牛奶中所含的胆固醇并不高，而牛奶中所含的乳清酸还具有抑制胆固醇的作用。
Literature should have a function of social value - The modern eschatology, a dislocation of value, has a negative effect on modern literature.
文学应该具有社会价值功能。现代末世学是一种价值借位，它对当今文学产生了很大的负面影响。
If you have a function of 30 variables, things work the same way, just longer, and you are going to run out of letters in the alphabet before the end.
如果有一个30个变量的函数，什么都一样，只是式子长了点，你还会用完字母表中的所有字母。
So now, that's going to be particularly important when we have variables that are related because, let's say now that I have a function that depends on x, y, and z.
在处理相关变量时，这一点特别的重要，这是因为…，例如有一个依赖于x,y,z的函数。
Namely, let's say that you have a function maybe of three variables, x, y, z, df = fxdx+fydy +fzdz then you would write df equals f sub x dx plus f sub y dy plus f sub z dz.
即是说，如果你有一个,含自变量，x，y，z的函数，那么。
The system not only have some functions such as light showing and countdowning, but also have a function of speech hinting because the speech characteristic of SPCE061A.
充分利用SPCE061A的语音特性，不仅具有红绿灯显示、倒计时功能，还能对红绿灯的转换进行语音提示，并能够根据路口需要设置红、绿灯的倒计时时长。
Once you have a function call that can operate on a range of lines, a particularly useful technique is to call that function via Visual mode (see: help Visual-mode for details).
一旦拥有了一个可以操作行范围的函数调用后，一个特别有用的技巧就是通过Visual模式(参见：help Visual - mode获得更多细节)调用该函数。
no matter what value you put for a function, 0 if you have a function that's zero everywhere except at the origin, and some other value at the origin, the integral is still zero.
无论函数是什么，如果你的函数除了原点处处为，在原点是其他的值，那积分还是0的。
In an application supporting globalization, you often have a function named select language, which displays a different language on the user interface according to a user's selection.
在支持全球化的应用程序中，通常有一个功能叫做选择语言，它将根据用户的选择在用户界面上显示不同的语言。
In short bursts, these hormones have a positive effect, including improved memory function.
短时间内这些激素会产生积极的影响，其中包括改善记忆功能。
In short bursts these hormones have a positive effect, including improved memory function.
短时间内这些激素会产生积极的影响，包括改善记忆功能。
How can the hormone adrenaline that does not act directly on the brain have a regulatory effect on brain function?
肾上腺素不直接作用于大脑，怎么会对大脑功能产生调节作用呢？
How can the hormone adrenaline that does not act directly on the brain have a regulatory effect on brain function?
肾上腺素不直接作用于大脑，怎么会对大脑功能产生调节作用呢？
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