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单词 logarithmic scale
释义 logarithmic scale
1 A scale of measurement in which an increase or decrease of one unit represents a tenfold increase or decrease in the quantity measured. Decibels and pH measurements are common examples of logarithmic scales of measurement.
2 A scale on the axis of a graph in which an increase of one unit represents a tenfold increase in the variable quantity. If a curve
y = xn
is plotted on graph paper with logarithmic scales on both axes, the result is a straight line of slope n, i.e.
logy = nlogx
, which enables n to be determined.
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