Integral upper limit function is a basic concept in function differential calculus.

积分上限函数是一元函数微分学的基本概念。

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It says that function, f of x, is bounded above here's an upper limit on it, that this grows no faster than quadratic in n, n squared.

这意味着这个方法f是有上限的,这个方法增长的速度,不会比括号内的n*n快。

麻省理工公开课 - 计算机科学及编程导论课程节选

In reality, three hours is the upper limit for how long a body can remain in suspended animation and still return to normal function.

FORBES: The Prospects of Short Term Cryonics