R.J.Bell of Pregame.com says the number of possibilities to guarantee a perfect bracket are an astronomical 9.2 quintillion.

VOA: standard.2009.03.25

What we do is we take the interest rate, which I'll call r, and plug it into a formula, which I didn't actually do the arithmetic to their number.

我们只需将利率r,代入等式中,虽然我没有代入数字验证过...

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And then the repulsive term, some positive coefficient r and r to a very high number.

然后排斥力，一些正系数,以及具有很大数值的。

麻省理工公开课 - 固态化学导论课程节选

R is going to be a fix number R times You don't know what it is right now.

等于一个常数 R 乘以,你现在还不知道它是多少

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b The repulsive term goes as some constant lower case b divided by R to the n. N is not the quantum number.

这种斥力很想一个固定的小写字母,被R到n分开的话，N不是量子数。

麻省理工公开课 - 固态化学导论课程节选

We notice that the value of E at r naught is negative, as it should be. It's a negative number.

我们主要到在r圈时E的值为负，和它本来的值一致，是一个负数。

麻省理工公开课 - 固态化学导论课程节选

And we wrote something that looks, the energy is equal to minus the Madelung constant times Avogadro's number, 0R0 q1 q2 over 4 pi epsilon zero R zero.

我们写下了，晶格能等于负的马德隆常数,乘以阿伏伽德罗常数，乘以q1q2除以4πε

麻省理工公开课 - 固态化学导论课程节选

I'm going to just put that in, and it's the cosine of the number times i plus sine of the number times j times R.

我要在式子加入这个量,这个式子就等于这个值的余弦乘以 i,加上这个值的正弦乘以 j 再乘以常数 R

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