C So here I'm declaring a variable called c, and I'm pretty much translating the formula from the slide using the characters on my keyboard to a floating point value.

这里我声明了一个变量，然后我把那个幻灯片上的公式,用键盘上的字符翻译成了,浮点数值。

哈佛公开课 - 计算机科学课程节选

That's another conventional formula that goes from interest rate to price of the security.

这是另一条已知利率,求证券价格的经验公式

耶鲁公开课 - 金融市场课程节选

You guys probably know that too from your days at the daycare, but I want to derive the formula and put it up, then we'll see how to use it.

你们可能从幼儿园起就已经知道这个式子了,但是我想重新推导一遍,再来看如何进行运用

耶鲁公开课 - 基础物理课程节选

If you had a perpetuity, which paid C/2 forever, you already know from the perpetuity formula that the value of that would be C/2 divided by r/2 if r/2 is the discount rate.

如果你有一只永续债券,每半年付息C/2,没有到期日,从永续债券的公式可以知道,债券价格等于C/2除以r/2,r/2为贴现率

耶鲁公开课 - 金融市场课程节选