I don't have to go read what it printed out in the screen. This has returned a value that I can use. Because I could do a test to say, is this a return value? If it's not, I'll do something else with it. So the binding is still there, it simply doesn't print it out.
我不想读到屏幕中打印出来的这行字,程序返回过一个我能够使用的值,因为我可以做个小测试,来说明这是否是返回的值,如果不是,我可以做一些其它的事,而这个绑定依然在这儿,没有打印任何东西。
Another important concept in probability theory that we will use a lot is expected value, the mean, or average-- those are all roughly interchangeable concepts.
概率论中另外一个常用的重要的概念是,期望值或者也叫均值,这两个概念可以互换
You got to assign a dollar value to know whether you want to prevent those deaths by banning the use of cell phones in cars.
你必须用金钱来衡量,是否需要禁止司机使用手机,来避免此类事件发生。
This is true even of seemingly identical signs, because each has its use value and is only intelligible as that which it exists to mean in a certain context.
看着相同的符号也是如此,因为每一个符号都有自己的价值,只有当它出现在某一语境中才能被理解。
It's too early to tell what the impact on learning will be from open course ware but we know from messages people have sent us that educators see tremendous value in being able to use the site to build work upon others.
现在还不好说,但是通过人们发来的邮件我们知道了,教育者对于能够在别人的基础上,展开自己的工作给予很高赞扬,他们现在可以节约下时间。
If I look at different points in my container during that path, I'm going to have to use a different value of pressure or different value of temperature That's not an equilibrium state, and that process turns out then to be an irreversible process.
如果我要研究在路径中容器里的,不同的点,我就得在容器里不同的点上使用,不同的压强值,或不同的温度值,实际上这不是个平衡态,这个过程是,不可逆过程。
In this case, I probably want to make sure I use absolute value of x before I carry it on. Yes ma'am.
在这个例子中,我可能想确定,在进行测试前我用的是x的绝对值,什么问题?
In addition to that, we have that epsilon nought value, remember that's the permittivity constant in a vacuum, and basically that is what we use as a conversion factor to get from units. We don't want namely coulombs to units, we want that will allow us to cancel out in this equation.
这是电子的电荷,此外,我们有epsilon零,记住这是真空的介电常数,这是我们用来转换单位的转换常数,我们不想用库伦单位,我们希望这个可以在方程中约去它。
That's just the those-- let me use my pointer that's just these two lines here. I checked the value, and in one case, I'm changing the last to be mid minus 1, which is the case I'm in here and I just call again. All right?
来看看ppt,这里有两条线,我检查了值,在一种情况下,我把last指向了中点减一,就是这种情况,我们再来调用一下怎么样?
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