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PROFESSOR: All right. Good. So we can fully believe what our calculations were now, which is a nice thing to do.
教授：好了，我们现在可以,完全相信我们的计算结果了，多么美妙的一件事。
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All right, this is actually a very old piece of imperative knowledge for computing square roots, it's attributed to Heron of Alexandria, although I believe that the Babylonians are suspected of knowing it beforehand.
好，这是一个很古老的,关于计算平方根的程序性知识，是亚历山大的海伦提出的，不过我怀疑在那之前,巴比伦人就已经猜想过了。
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Often, for a particular state change, it is easy to calculate two of these, but not the third.
对于一些特定的状态变化，它们中的两个很好计算，但是第三个往往不容易计算。
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And if you have your calculator all set up as you love and you don't want to change it, then maybe you should just go and get an $8.00 scientific calculator that doesn't have any of the graphing functions, because you don't actually need them, so that's a better option for you, you can do that as well.
如果你的计算器里已经按照你的喜好编好了,而你又不想改动，那么或许你可以,去再买一个八美元的科学计算器,它没有任何绘图功能，因为实际上你也用不到这些，所以这对你来说是一个更好的选择，你也可以这样做。
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OK, in a few minutes we're going to start talking then about what is computation, how are we going to start building those tools, but that's what you should take away, that's what you're going to gain out of this course by the time you're done.
好啦，我们会花一点儿时间,谈谈什么是计算，我们如何去建造这些工具，但是这些是你应该，在离开这个课堂时,应该学会的事儿。
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Well, what we can see here is that I'm computing the same value over and over again.
好吧，我们现在看到的是,我不断地在计算同一个值。
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OK. Now. Think for a second about computing the average age of the faculty.
好，想想怎么,计算全体教员的平均年龄吧。
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All right, let me just go through one numerical example of a calorimetry calculation, OK.
好，让我们来做一个量热,法计算的例子，我不会把所有的。
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OK. Today, for the rest of the lecture, we're going to take a break from the topic of algorithms, and computation, and things of the sort. And do something pretty pragmatic.
好，今天剩下的时间里，我们不再讲算法，计算和排序这些话题了,我们会做一些非常实用的事,我们主要的讲讲测试。
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Right, it's a syntactic error, because it doesn't know how to deal with this.
好，这是个语法错误，这是因为计算机不知道怎么来解释着个。
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All right. That's what computation basically is about.
好了，这基本上就是关于计算相关的东西。
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Good. OK. Let's talk about computation.
好了，嗯，咱们开始讲讲计算机。
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All right, so now let's see how we execute it, and do the calculations that allow us to calculate this. So, one, what's delta H in step one?
好，现在我们看看怎样操作它，怎样进行计算，第一步,步骤I的ΔH是多少？
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Well we're seeing this famous computers are no damn good.
要运行compare方法,噢这些著名的计算机可能并没这么好。
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