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单词 Logarithmic unit
释义

Logarithmic unit

中文百科

对数尺度 Logarithmic scale

(重定向自Logarithmic unit)
对数尺度方便比较一些大范围的数据,例如地图中的伤亡数据
线性-对数、对数-线性、对数–对数。图中有:y = 10 x(红色), y = x(绿色), y = loge(x)(蓝色)
F(x) = (x−10 )(1020)的全对数图,可以表示为log(F(x)) = −10 log(x) + 20.

对数尺度(logarithmic scale)是一个非线性的测量尺度,用在数量有较大范围的差异时。像黎克特制地震震级、声学中的音量、光学中的光强度、及溶液的PH值等。

对数尺度是以数量级为基础,不是一般的线性尺度,因此每个刻度之间的商为一定值。

英语百科

Logarithmic scale 对数尺度

(重定向自Logarithmic unit)
A log scale makes it easy to compare values that cover a large range, such as in this map
Various scales: lin–lin, lin–log, log–lin, and log–log. Plotted graphs are: y = 10 x (red), y = x (green), y = loge(x) (blue).
Plot on log–log scale of equation F(x) = (x−10 )(1020), which can be expressed as the line: log(F(x)) = −10 log(x) + 20.

A logarithmic scale is a nonlinear scale used when there is a large range of quantities. Common uses include the earthquake strength, sound loudness, light intensity, and pH of solutions.

It is based on orders of magnitude, rather than a standard linear scale, so each mark on the scale is the previous mark multiplied by a value.

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更新时间:2025/6/18 3:15:06