, those logarithms (devised by John Speidell, 1619) of which the
base is 2.7182818; -- so called from Napier, the inventor of
logarithms.
Logistic or Proportionallogarithms., See under
Logistic.
Source: Webster's Revised Unabridged Dictionary (1913)
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Logistic \Lo*gis"tic\, Logistical \Lo*gis"tic*al\, a. [Gr. ?
skilled in calculating, ? to calculate, fr. lo`gos word,
number, reckoning: cf. F. logistique.]
1. Logical. [Obs.]
--Berkeley.
2. (Math.) Sexagesimal, or made on the scale of 60; as,
logistic, or sexagesimal, arithmetic.
Logistic, or Proportional, logarithms, certain
logarithmic numbers used to shorten the calculation of the
fourth term of a proportion of which one of the terms is a
given constant quantity, commonly one hour, while the
other terms are expressed in minutes and seconds; -- not
now used.
Source: Webster's Revised Unabridged Dictionary (1913)
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