Supply an integer, n, for the third argument to return only the first n matches; or supply -1 for all matches.

给第三个参数提供整数 n 将只返回前 n 个匹配；或者提供 -1 返回所有匹配。

youdao

You may specify the total number of tagged entries to return using the n parameter -- the default value is 20 (n=20).

你可以通过参数n指定返回的数量，默认为20。

youdao

N Investors may be risk averse, demanding a higher rate of return - a risk premium - for holding risky assets.

n投资者可能是风险厌恶的，要求在持有风险资产时拥有更高的回报率——风险溢价。

youdao

So this line or these lines of code up here are arguably constant time steps to say if N is less than 2 in return, that it will always take maybe one step, maybe two steps, some number of fixed CPU cycles.

如果N小于2并返回,那么这些行所对应的代码,通常只需要执行一步，或者两步，具体数字与CPU周期有关。

哈佛公开课 - 计算机科学课程节选

n Alright. So if n is less than or equal to 1, return n. Well that's not right, right?

好吧，如果n小于等于1，它会返回，这里不对，是吧？

麻省理工公开课 - 计算机科学及编程导论课程节选

Suppose someone has been investing money for n years and xi is the return on the investment in a given year.

假设有人投资了n年,Xi是第i年的收益率

耶鲁公开课 - 金融市场课程节选

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