Black cohosh is an herb that comes from the root or underground stems of a tall plant in the buttercup family.
VOA: special.2009.05.19
If you had one negative number in it, then the product would be a negative number and, if you took a root of that, then you might get an imaginary number.
如果这当中有一个负数,乘积就会变成负的,如果你对一个负数开根号,你就会得到一个虚数
First of all, it's clear from the Pythagoras' theorem that a is the square root of ^2 + ^2.
首先,根据毕达哥拉斯定理,勾股定理在西方被称为"毕达哥拉斯定理"
For his mathematical project, he compared two ways to estimate the square root of an integer, a number with no fractional parts.
VOA: special.2011.03.24
It was over here. Because the square root of a quarter is not smaller than a quarter it's bigger than a quarter. Right?
答案超出了这个区间,因为0。25的平方根会比0。25大,是应该比0。25大对不对?
The bottom of the root ball will look something like the spread-open wings of a butterfly.
VOA: special.2011.04.19
Now, the Hebrew word "holy" has a root meaning of separate. Separate.
现在,这个希伯来词语“神圣“,根源的意思是独立。
At the base of the hair root is a small ball-like formation called a bulb.
VOA: special.2011.04.05
But if you can accept the purity of the statement I just made, it is at the root of the thing you have a solution.
但如果你能够遵从原教旨主义的方式,那么这就是你解决此问题的根本
"It's so simple. With a two-liter bottle you add sugar, you add extract, you add a small amount of yeast and water, cap it up and in two days they've got root beer.
VOA: special.2011.08.01
And deep at the root of Manifest Destiny, of course and there's book after book written on this is a deep and abiding American white supremacy.
很明显,这都源于命运天定,关于这点有很多著书证明,命运天定是根植于美国的白人至上主义
After a bullish start this year, a wave of pessimism appears to be taking root.
VOA: standard.2010.05.25
And it is precisely this desire to be self-governing, you might say to rule directly, to have a direct part in political rule, that Hobbes saw as one of the great root causes of civil war.
正是这种自我统治的愿望,直接统治的愿望,在政治统治中直接参与的愿望,霍布斯视为是,内战一个很重要的原因。
"The recommendations are very clear." "For a country like Greece, you need to act on the fiscal side, and therefore addressing very forcefully the root causes of your fiscal problems through spending cuts and increasing taxation."
VOA: standard.2010.03.11
The idea really took root--the idea, the intuitive idea is that as you write a large number of policies, the fraction that will result in accidents becomes closer and closer to the probability of one accident.
这种观点建立在...,观点是,只要你签的保单足够多,事故占保单总数的比例就会越来越接近,事故发生的概率
Smith says American academicians and journalists often cite a list of root causes for Middle East turmoil, in which the U.S., the West and Israel usually play a big part: a history of colonialism and economic exploitation, the creation of Israel and American support for the Jewish state, the politics of oil, Western backing of repressive Arab regimes and the U.S.military presence in the region.
VOA: standard.2010.03.18
Well I'm relying on the contract, if you like, that the manufacturer of square root put together, which is, if I know I'm giving it two floats, which I do because I make sure they're floats, the contract, if you like, of square root says I'll give you back a float.
好吧我能靠一些类似合约来保证,如果这么说你喜欢的话,其实就是当求平方根的方法,获得了两个我已经确认了是浮点数的数后,这个类似合约的东西就会保证,返回一个浮点数。
OK, once it gets to the end of that, what's it going to do? It's going to come down here and, oh. What's that doing? Well I cheated when I started. I said, somebody's giving me a perfect square, I'm looking for the square root of it. But suppose 15 I gave this thing 15, and asked it to run.
好,一旦到了循环的最后,程序会去做什么?程序会跳到这里来,噢,这是干什么的?好吧,当我开始的时候我有点小作弊的意思,我说过,我得到了一个完美的平方数,我要求这个数的平方根,但是假设下我得到的数是。
Computing square root. I'm going to capture it in a piece of code, I'm going to be able to refer to it by a name, and I'm going to suppress the details, meaning inside of that computation, you don't need to know what it does. You just need to know, if I give it the right kind of input, it'll give me back an input that satisfies the contract that I set up.
比如计算平方根,我会用一段代码来说明,我将给它命名,并且忽略细节,意思就是在这一段计算过程中,你不用知道它做了什么,你只需知道,如果我进行了正确的输入,它将会给我符合条件的输出。
The abandonment of such a study or its adulteration for current political purposes would be a terrible loss for all of humanity, and at the base, at the root of that civilization stood the Greeks.
如果出于政治的目的而对此段历史,视而不见甚至完全摒弃,这对全人类,将是一个巨大的损失,追根溯源,这一切都根植于希腊文明
I'm checking that I didn't leave my program because I didn't find an answer. Well this is a good thing, it's better than my program running forever, but it's a bad thing because I don't have it the square root of 0.25.
我对计数器要做个验证,因为我不会没得到答案就退出程序,好,这其实是个好事,因为它不会让我的程序永远跑下去,但这也是件坏事因为,我没得到0。25的平方根。
And I was talking about the fact that for Deuteronomy the election of Israel, God's election of Israel means or entails the idea that Israel is a holy people, holy in the sense of separated to God that root meaning of holiness which means to be separated from the common or the ordinary.
我上次提到了《申命记》中的一个事实,以色列被选择,上帝选择以色列意味着,以色列是神圣的民族,对于上帝他们是分离的,这便是神圣的根本意义,意味着与一般和普通分离。
Remember, I said when we do a bisection method, we're assuming the answer lies somewhere between Well, what is the square root of a quarter? It is a half.
记住,我提过当我们用二分法的时候,我们假设答案处于,上边界和下边界之间,0。25的平方根是多少?,是0。5。
The point I wanted to make is that for every node, except the leaves, the leaves are the bottom of a tree in this case, are weird, right, they draw trees where the root is at the top, and the leaves are at the bottom.
你没必要看到整棵树,我想说的重点是,对每个节点来说,除了叶子节点,叶子节点指的是树的最下面的节点,电脑科学家都很奇怪,他们画树的时候根是在最上面的。
A Christian civilization was deeply at the root of this cluster of ideas we call Manifest Destiny, as was a virulent kind of nationalism that boomed after the War of 1812 and through the 1820s into the 1830s.
基督教文明是我们所称的命运天定,及其相关思想的核心,它是一种有害的民族主义,在1812年战争后兴起,并流行于十九世纪二十年代和三十年代
I'm given an integer that's a perfect square, and I want to write a little piece of code that's going to find the square root of it. All right so I'm cheating a little, I know it's a perfect square, somebody's given it to me, we'll come back in a second to generalizing it, so what would the steps be that I'd use to walk through it?
完美平方数的整数,我想写一段代码来求这个数的平方根,好,我这儿有点儿作弊了,我知道这是一个完美的平方数了,他们给我的,我们后面会讲怎么产生这个数的,那么我想解决这个问题,需要什么步骤呢?
I'm using it as an abstraction, saying I'm going to have square root from somewhere, maybe I'll build it myself, maybe somebody gives it to me a s part of a library, so I'm burying the details inside of it.
我把这个方法作为一个抽象来引用,意味着我将会从另外一个,地方去求一个数的平方根,可能我会自己写这个方法,也可能我会从别人写的lib中去引用,因此我将实现的细节放到了其他地方。
to do sqrt, or square root-- no, I'm going to square root use sqrt, that's the name I'm using here-- square root a hundred different places in some piece of code. Without function, I'd have to copy that piece of code everywhere.
让我做一下准备,想象一下我要调用sqrt或者-,不,我会调用sqrt函数,这是我在这里用的名字,我得把这段代码到处复制。
If I say x is 2, I want to know, what's the square root of 2, well if you're enough of a geek, you'll say 1.41529 or whatever the heck it is, but in general, this doesn't help you find the square root.
如果我说X等于,我想知道,2的平方根是多少,那么如果你足够书呆子你就会说,1。41529或者随便什么玩意儿,但是大体上,它不会帮你算出平方根。
There is one exception. In the sixth century, I think it's around--imagine around 550 or something like that, the Greeks settle a single colony in the Delta of the Nile of Egypt at a place called Naucratis, and the root of that word is ship.
但有一个例外,在公元前六世纪,我想大概是,在公元前550年左右,希腊在埃及尼罗河三角洲,一个叫诺克拉提斯的地方建立了殖民地,Naucratis的意思就是船
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