data constant

基本解釋

Is the data constant?
數(shù)據(jù)是否為常量？
AdArray 0x2000 A flag value combined with another data type constant. Indicates an array of that other data type.
一個(gè)標(biāo)記值，它是與其他的數(shù)據(jù)類型常數(shù)結(jié)合在一起使用的。它指明了包含其它數(shù)據(jù)類型的數(shù)組。
This paper is concerned with an initial-boundary problem of nonconvex scalar conservation laws with two pieces of constant initial data and constant boundary data.
本文研究具有兩段常數(shù)的初始值和常數(shù)邊界值的非凸單個(gè)守恒律的初邊值問題。

So we're to assume we can get to any piece of data, any instruction in constant time, and the second assumption we're going to make is that the basic primitive steps take constant time, same amount of time to compute. Again, not completely true, but it's a good model, so arithmetic operations, comparisons, things of that sort, we're all going to assume are basically in that in that particular model.
因此如果我們假設(shè)在恒定的時(shí)間內(nèi),我們可以取得任何一塊數(shù)據(jù),任何一種數(shù)據(jù)結(jié)構(gòu)的話,我們要做的第二個(gè)假設(shè)就是,基本的原始操作計(jì)算花費(fèi)的時(shí)間是恒定的,這個(gè)假設(shè)也不是完全正確的，但這個(gè)模型其實(shí)挺不錯(cuò)的，因此算法操作，比較，這一類的事情，我們?cè)谶@個(gè)特定的模型中都假設(shè)是基本的,操作，花費(fèi)的時(shí)間是恒定相同的。
麻省理工公開課 - 計(jì)算機(jī)科學(xué)及編程導(dǎo)論課程節(jié)選

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