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Literally, return the control from this function, and take the value of the next expression, and return that as the value of the whole computation.
正如字面意义上说的，从这个函数返回，然后取得下一个表达式的值,并把这个值作为整个计算的结果返回。
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To some degree, it's harder to imagine the worst thing than to statistically sort of figure out the middle band.
一定程度上，预测最坏的结果,要比以统计的方式预测出中间值更为艰难。
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What comes out of the math is that the value of k, there are multiple values, there are multiple solutions.
得到的数学结果是k的值，这有多种值，多种解法。
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There's nothing profound about this, other than the understanding that the details of how you set these things up can matter a lot.
只是说我们要理解，一开始设定时候的值,会对结果有很大影响。
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I'm going to try and predict what the value is going to be. And then see if, indeed, I get what I predicted.
我会去预测结果值应该是怎么样的,并去看看它是不是，跟我预期的相同。
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What I mean by that is, pick a simple set of values, and let's walk through it to see what happens. And this is useful because it's going to allow me to A make sure that I've got something that's going to terminate, it's going to let me make sure that in fact I'm doing the right kinds of updates.
原因你们知道的，好，模拟代码,我的意思就是,选出一系列的值来,然后模拟下代码的执行来看看结果,这很有用因为这让我确保我的程序在某个地方,可以终止，还会让我确保实际上我。
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And of course I get out the value I'd like there.
当然我会从这里得到我想要的结果值。
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There are two possible values here, I think.
有两个可能的结果值了，我认为。
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All right? And if you want to do other things, whoops, sorry-- and add them together, we will get out, again, a concatenation of that string. And these will, we'll let you work through the variations, but these are the simple expressions we can use.
对不对？如果你想要进行一些别的操作，哦，对不起-是加到一块，然后结果值也是，两个字符串的链接，这些会，我们会让大家慢慢学习变量，但是这些是我们能用的最简单的表达式。
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So I can concatenate techs plus ivys and assign that result to univs, and then when I print it you'll notice I just get a list of five strings.
和ivys数组用加号串联运算,并把结果赋值给univs数组，接下来我显示下univs的结果,你注意到我得到了一个。
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If they tend to move together, when x is high and y is high together at the same time, then the covariance will tend to be a positive number.
如果x和y同向变动,当x值和y值同时都很大,协方差的结果将会是一个正值
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All right. Second question: or maybe a better way of saying this, and the general format you're likely to see here is, a test involving a variable name, which must be initialized outside of the loop, and which interior to the loop gets changed, so that the test is going to change.
好，第二个问题：,换种更好的方式来说吧，你们通常喜欢的,方式是，这个测试涉及到一个变量名字，变量在循环外已经被初始化，然后循环内部会改变这个变量的值，因此测试结果会改变。
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Initially, it's the beginning and the end of it.
然后根据中值点和目标数的比较结果。
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Which is, and we're going to do some examples of this, initially we just typed in expressions Python into the interpreter; that is,directly into Python And as I suggested last time, the interpreter is actually a program inside of the machine that is basically following the rules we're describing here to deduce the value and print it up.
也就是，我们将会对这一点讲解一些例子，一开始我们只是简单的把表达式输入,到解释器里面去，也就是直接传给,我上次跟大家讲过，解释器实际上是,机器内置的,按照我们描述的规则,来推算出结果值并把值显示出来的一个东西。
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I'm expecting the value that test to be a Boolean. Followed by a colon.
我希望测试的结果值的类型,是Boolean的，后面是个冒号。
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