They're not going to be positive. We've said that.

们已经说过，它们不会是正。

From your perspective, no matter how far you look, this sum will be positive.

从你的角度来看，无论你看多远，总和都是正。

Negative on one side, positive on the other.

边是负，边是正。

And the way I set this up, tension's going to be a negative number.

写出式子的方式是只是因爲设正是向下的。

Just because I'm saying positive numbers are downwards, so a negative number would be upwards.

只是因爲设正是向下的所以个负应该是向上的。

I think this month, it will turn to positive.

认为这个月该指将转为正。

I'm saying it is to the right, because it is positive.

题中表示“向右”， 因为力为正。

And the only reason why I got a negative number is because I used positive numbers for downwards.

让正代表向下让正代表向下。

That's a positive number, so the the negative flag is false.

那是个正，所以负标志为假。

But the squaring makes all of these positive.

但平方会使所有这些值变成正。

When the numbers have the same signs, the answer's going to be positive.

当字的符号相同时，答案将是正。

After that, positive numbers indicating upward motion, and negative numbers indicating downward motion.

之后 正表示向上运动 负表示向下运动。

So we need a way to represent positive and negative numbers.

所以们需要种方法来表示正和负。

Negative 3 pounds times negative 5 weeks is positive 15. Negative time negative equals a positive.

负3磅乘以负5周等于正15。负乘以负等于正。

I would like 2 arrays of 10 positive beans.

想要两份各包含10颗正豆的组。

This is where the third counterintuitive idea comes in In classical physics probabilities must be positive.

这是第三个反直觉的想法出现的地方：在经典物理学中，概率必须是正。

But since we're squaring and taking the sum of squares, this is always going to be positive.

但因为们是对值进行平方并求平方和，所以这总是会得到个正。

On the other hand, he says there is a smallest number if you're counting positive numbers.

方面，他说如果你计算的是正，就会有个最小的字。

That's already positive, so 6.25, 6.25.

那已经是正了，所以是6.25，6.25。

And then, when you square it, it becomes a positive number.

然后，当你对它进行平方时，它就变成了个正。