| 单词 | logistic logarithms |
| 释义 | > as lemmaslogistic logarithms The word is now understood to refer only to systems in which the logarithm of any number ax is x, a being a constant which is called the base of the system. The logarithms (of sines) tabulated by Napier himself were not logarithms in this restricted sense, but were functions of what are now called Napierian (also Neperian), hyperbolic, or natural logarithms, the base of which, denoted by the symbol ε or e, is 2·71828 +. This system is still in use for analytical investigations, but for common purposes the system used is that invented by Napier's friend Henry Briggs (died 1630), the base of which is 10; the Briggsian or Briggian logarithms are also known as common logarithms (see common adj. and adv. Compounds 2) or decimal logarithms. For binary, Gaussian logarithm, see the adjectives. logistic logarithms (see quot. 1795); also called proportional logarithms.extracted from logarithmn.logistic logarithms Categories » b. logistic logarithms: logarithms of sexagesimal numbers or fractions used in astronomical calculations. < as lemmas |
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