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Mesologarithm

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Mesologarithm \Mes`o*log"a*rithm\, n. [Meso- + logarithm : cf.
   F. m['e]sologarithme.] (Math.)
   A logarithm of the cosine or cotangent. [Obs.] --Kepler.
   Hutton.
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