| 单词 | logarithm |
| 释义 | logarithm (once / 14981 pages) n A logarithm is a mathematical concept involving multiplication. A logarithm is the exponent that will yield a certain number. For a base of 3 to produce 9, the logarithm would be 2. Every number has a logarithm that — if it were an exponent — would produce a certain number. For example, let's say the base is 5. The logarithm to produce 25 would be 2, because 5 times 5 is 25. If the base is 10, the logarithm to produce 10000 would be 4. The logarithm is also called the log. Scottish mathematician John Napier coined the word by using the Greek logos for "word or ratio” plus arithmos for "number.” WORD FAMILYlogarithm: antilogarithm, logarithmic, logarithms+/logarithmic: logarithmically USAGE EXAMPLESWe did logarithms rather than “the new math”. The Guardian(Sep 10, 2016) The size of the plotting symbols is proportional to the logarithm of the counting rate. Nature(May 24, 2016) Against older siblings, he was said to be unbeatable in mathematical games by age 6 because of his knowledge of logarithms. Washington Post(Mar 14, 2016) n the exponent required to produce a given number Syn|Hypo|Hyper log common logarithm a logarithm to the base 10 Napierian logarithm, natural logarithma logarithm to the base e exponent, index, power a mathematical notation indicating the number of times a quantity is multiplied by itself |
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