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Logarithm vs Cologarithm - What's the difference?

logarithm | cologarithm |

In mathematics|lang=en terms the difference between logarithm and cologarithm

is that logarithm is (mathematics) for a number x, the power to which a given base number must be raised in order to obtain x written \log_b x for example, \log_{10} 1000 = 3 because 10^3 = 1000 and \log_2 16 = 4 because 2^4 = 16 while cologarithm is (mathematics) the logarithm of the reciprocal of a number (equal to the negative of the original logarithm).

As nouns the difference between logarithm and cologarithm

is that logarithm is (mathematics) for a number x, the power to which a given base number must be raised in order to obtain x written \log_b x for example, \log_{10} 1000 = 3 because 10^3 = 1000 and \log_2 16 = 4 because 2^4 = 16 while cologarithm is (mathematics) the logarithm of the reciprocal of a number (equal to the negative of the original logarithm).

logarithm

English

(wikipedia logarithm)

Noun

(en noun)
  • (mathematics) For a number x, the power to which a given base number must be raised in order to obtain x. Written \log_b x. For example, \log_{10} 1000 = 3 because 10^3 = 1000 and \log_2 16 = 4 because 2^4 = 16.
    • For a currency which uses denominations of 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, etc., each jump in the base-10 logarithm from one denomination to the next higher is either 0.3010 or 0.3979.

    Synonyms

    * log

    Derived terms

    * common logarithm, common log * natural logarithm, natural log * logarithmancy

    Anagrams

    * algorithm

    See also

    * ln

    cologarithm

    English

    Noun

    (en noun)
  • (mathematics) The logarithm of the reciprocal of a number (equal to the negative of the original logarithm)