Do we use the real numbers or do we approximate?

我们是用实数还是用近值？

The date March 14, as we write it in the United States, is 3-14.

而圆周率日正是由近值3.14得来。

Estimate, roughly calculate, give an approximation, a good guess.

估计，粗略计算，给出一近值，一好的猜测。

Paul had seen enough for a first approximation.

保罗已经够多的第一近值。

Because to first approximation, dark matter is invisible.

因为对于第一近值，暗物质是不可见的。

And I use that as an approximation for this area.

我用它作为域的近值。

At some point you have to start to approximate values.

在某些时候，你必须开始近值。

But the best we can really do is offer an approximation.

但我们真正能做的最好的事情就是提供一近值。

Estimate, roughly calculate, give  an approximation, a good guess.

估计，粗略计算，给出一近值，一很好的猜测。

As an approximation, however, we can identify this with the rate of interest.

然而，作为一近值， 我们可以用利率来确定一点。

And when they come through our radar we get an approximation for position and velocity.

当它们通过我们的雷达时，我们会得位置和速度的近值。

These are both pretty good approximations of normal distributions.

些都是正态分布的很好的近值。

This means it's approximately equal to, so it's an approximation, not exactly equal.

意味着它大约等于， 所以它是一近值， 而不是完全等于。

It gives you an approximation of how fast, or slow, an algorithm is going to be.

它为您提供了一算法将要多快或多慢的近值。

I can't assume that it's exactly, so this is where we're dealing with approximations right here.

我不能假设它是准确的，所以就是我们在里处理近值的地方。

At first I thought that this emission indicated that one of the approximations I had used was not valid.

起初我认为发射表明我使用的近值之一是无效的。

Once again the whole point of this is to see that the normal distribution is a good approximation.

再一次，一切的重点是正态分布是一很好的近值。

Even this approximation will be approximately normally distributed.

即使近值也将近服从正态分布。

So let's say this has a base of 1, to calculate this area which I use as an approximation.

所以假设它的底数是 1，来计算我用作近值的面积。

So it might be pretty good approximation.

所以它可能是非常好的近值。