Let me give you, I'm going to create, q a polar point, I'm going to call it q, and we'll give it some random values.
让我给大家讲解下,我要去创建,一个极坐标点,然后我会去命名它为,然后我给它赋一些随机的值,好,现在我想知道。
It will return me some random value from either the Gaussian or the normal distribution.
它会给我,返回符合高斯分布。
It's just some random chunk of four bytes that happens to be available at this point in time, but I can put something there.
只是一些随机的四字节的内存块,在这里是可以使用的,但是我可以在那里放置东西。
When there's a bad outcome for anyone, that's the outcome of some random draw.
任何人都有走背运的时候,这是随机选择的结果决定的。
And I don't just mean throw out some random assortment of notes.
我不是说那种随机抛出各类音符的创作
The basic definition-- the expected value of some random variable x--E--I guess I should have said that a random variable is a quantity that takes on value.
最基本的定义,某一个随机变量X的期望值E,我应该提到过,随机变量是一个可以取值的数
We can understand something that's fully random and work out the statistics and be comfortable with that to some degree.
我们能够理解一些,充满随机性,然后通过统计分析来解决的问题,而且一定程度上我们对此也很熟悉。
Here's the polar representation of it, some random set of numbers which makes sense.
也就是,这里是它的极坐标表示法,一些有意义的随机数字集。
The better way to think about this is, suppose, rather than starting at the beginning, I just grabbed some spot at random, like this one.
不从数组的头开始遍历,我随即的从数组中抓一个元素,比如这个,我去看看这个元素的值。
Almost everyone in this room has probably had a segfault at some point or core dump where you end up with this random file called core, which recall is just the contents of memory at the time your program crashed.
几乎这个教室里的所有人,在某个时候,都遇到过段错误,或者通过这个core文件的,存储器内核更新,这就是你的内存出现错误,你的程序崩溃掉了。
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