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Successive approximation, Newton-Raphson was one nice example, but there's a whole class of things that get closer and closer, reducing your errors as you go along.
逐渐逼近,牛顿迭代是一个很好的例子,随着你不断的时行下去,你会不断的离结果越来越近，逐渐地减少误差。
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This is boring. In fact, you can do some nice things to prove what is the class of functions you can compute with straight-line programs, and what you'd see if you did that is, it's not particularly interesting.
这很无聊，实际上，你可以通过做一些很有趣的事情,来证明你可以通过直线程序,来做很多功能，但是你也看到我们之前讲过的了，这不太有趣。
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Most of the information that we covered about requirements for the class and things like that were-- are on the course website.
所有课程要求,和其他大部分需要了解的信息,都可以在这个网站上找到
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For those of you who are new to the class,welcome A couple of administrative things.
新加入的同学们，欢迎,一些行政上的事情。
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And many of the things you will learn in this class, you've heard of before.
而你们将在本课程中学到的许多东西，都是你们之前听说过的。
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One of the discomforts, one of the reasons that I think so many people in society and even in this class are uncomfortable when it comes to computers and intimidated by technology and kind of throw up their hands when things go wrong that you don't understand is frankly not necessarily your fault.
当我想到在社会中，即使在这个班级上,有那么多的人,使用计算机时是不舒服的,他们被这种科技吓到了，束手无策,当发生故障时，你也不知道，其实,这也不是你的过错。
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One last word of encouragement, I'll say it again, there's a lot of words in this chapter, there's a lot of concepts, focus on the things that I talked about in class not the details, the basic concepts.
最后再说点鼓励你们的话吧,这一章涉及到很多名词,有很多概念,需要关注的不是我讲的细节,而是基本概念
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One of the things that I defined inside my class definition here was an internal method.
就是这里的内部方法,这个方法有个名字,这很明显，那么这个方法。
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These are called concept sheets and they're one to two pages of things that you write about what's going on in the class.
你们需要写一份一到两页纸的观点报告,主要写一些与课堂内容有关的事情
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Things started to change probably on the first day of class, but not entirely-- because there's shopping period and it's such a wonderful thing-- you shop for classes.
事情也许从开课第一天就发生变化，但没有完全不同-,因为这是购物期，妙不可言的阶段-,你们选择课程。
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That's one, and we could show you dozens and dozens of these sort of things, and we will over the course of the class; each one of them very interesting.
这仅仅是一个广告,我还可以给你们看不计其数类似的广告,在这门课上我会一一给你们展示,每一个广告都很有意思
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There will probably be a few of you who are here in the class who weren't here before so I'll mention a few things in just a moment about class requirements again.
也许在座的同学当中,有一部分人没有上过前面的课,所以我快速简单地回顾一下,课程要求
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My task in the class here isn't to do an in depth analysis of the biology or things--or scientific methods, or any things like that that would make you have to retain a lot of detail in the readings.
我在课上的任务不是用生物学的方法,或者类似的科学方法进行深入的分析,我的目的并非让你们记住这些细节
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A few things about logistics of the class to help you guys navigate through various electronic things that the class has at the moment.
课程的流程可以帮助大家,利用课程现有的电子工具
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That's right. That's an example, as we talked about in the last class, of the act of keeping records influencing the accuracy of the records, because you're prone to do things differently then what your typical eating might be because you're keeping the records.
对,如我们上节课所谈到的,这有个持续记录会影响记录准确性的例子,由于你不断进行记录,你更可能会吃与不同于平时的东西
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These are instances of a class, and associated with that class are a set of methods things that I can deal with.
但是Python的基本思想是相同的，这是一些一个类的实例,这个类关联了一个方法集,我可以做的一些操作。
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There are probably those of you in the class already who are outraged by things like the modern food environment, how much energy it takes to transport things from place to place, lack of concern with sustainability and issues like this, and you'd like to see social change.
在坐的各位当中可能已经有人,对目前的食品环境感到愤怒,很多能量浪费在食品相关的运输上,忽略了对可持续性的关心等问题,你可能希望社会会有所改变
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