Do we use the real numbers or do we approximate?

我们用实数还用近值？

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

而圆周率日正由近值3.14得来。

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

估计，粗略计算，给出一个近值，一个好的猜测。

Paul had seen enough for a first approximation.

保罗已经看到足够多的第一近值。

Because to first approximation, dark matter is invisible.

因为对于第一近值，暗物质不可见的。

And I use that as an approximation for this area.

我用它作为这个区域的近值。

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一个近值。

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

估计，粗略计算，给出一个近值，一个很好的猜测。

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

然而，作为一个近值， 我们可以用利率来确定这一点。

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，我们会得到位置和速度的近值。

These are both pretty good approximations of normal distributions.

这些都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.

这意味着它大约等于， 所以它一个近值， 而不完全等于。

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

它为您了一个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.

我不能假设它准确的，所以这就我们在这里处理近值的地方。

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

起初我认为这个发射表明我使用的近值一无效的。

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

再一次，这一切的重点看到正态分布一个很好的近值。

Even this approximation will be approximately normally distributed.

即使这个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 1，来计算我用作近值的这个面积。

So it might be pretty good approximation.

所以它可能非常好的近值。