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单词 logarithmic scale
释义

logarithmic scale

A method of representing positive numbers on a line as follows. Taking one direction along the line as positive, and a point O as origin, the number x is represented by the point P in such a way that OP is proportional to log x, where logarithms are to base 10. Thus the number 1 is represented by O; and, if the point A represents 10, the point B that represents 100 is such that OB = 2OA.

The measurement of sound using decibels and of the size of earthquakes using the Richter scale are two examples of logarithmic scales.

A logarithmic scale

See also slide rule.

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更新时间:2025/4/29 16:21:27