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词汇 Power law
分类 英语词汇 英语翻译词典
释义

Power law

英语例句库

Taking power law index non-Newtonian fluid as an example, a method of solving non-Newtonian three dimensional thermohydrodynamic lubrication of journal bearing is introduced.

以幂率流体为例，提出了一种求解径向滑动轴承非牛顿三维热流体动力润滑性能的方法。

原声例句
Veritasium真理元素

Whereas this power law model, which says things are slowing down, but never reaching an asymptote?

而幂律模型表明事物正在减速，但从未达到渐近线？

Veritasium真理元素

There's a model that also has just two parameters called a power law model that says things slow down, but it doesn't have an upper bound.

有一个模型也只有两个参数， 称为幂律模型， 它表示速度会减慢，但它没有上限。

中文百科

幂定律

幂定律（英语：power law）是一种多项式关系。遵守这关系的多项式，会展现出标度不变性（scale invariance）的性质。最普通的，表达两个变量之间关系的幂定律，其形式为

f(x) = ax^k +o(x^k)\,\!；

其中，a\,\!与k\,\!都是常数，o(x^k)\,\!是x\,\!的一个渐近微小函数。

英语百科

Power law 幂定律

An example power-law graph, being used to demonstrate ranking of popularity. To the right is the long tail, and to the left are the few that dominate (also known as the 80–20 rule).
Some models of the initial mass function use a broken power law; here Kroupa (2001) in red.
A straight line on a log-log plot is strong evidence for power-laws, the slope of the straight line corresponds to the power law exponent.

In statistics, a power law is a functional relationship between two quantities, where a relative change in one quantity results in a proportional relative change in the other quantity, independent of the initial size of those quantities: one quantity varies as a power of another. For instance, considering the area of a square in terms of the length of its side, if the length is doubled, the area is multiplied by a factor of four.
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