logarithmic mean

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• Logarithmic mean — In mathematics, the logarithmic mean is a function of two numbers which is equal to their difference divided by the logarithm of their quotient. In symbols::egin{matrix}M {mbox{lm(x,y) =lim {(xi,eta) o(x,y)} frac{eta xi}{ln eta ln xi}… …   Wikipedia

• Mean — This article is about the statistical concept. For other uses, see Mean (disambiguation). In statistics, mean has two related meanings: the arithmetic mean (and is distinguished from the geometric mean or harmonic mean). the expected value of a… …   Wikipedia

• Logarithmic differentiation — Logarithmic derivative is a separate article. Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus  Derivative Change of variables Implicit differentiation …   Wikipedia

• Logarithmic scale — A logarithmic scale is a scale of measurement that uses the logarithm of a physical quantity instead of the quantity itself. Presentation of data on a logarithmic scale can be helpful when the data covers a large range of values ndash; the… …   Wikipedia

• Logarithmic distribution — Probability distribution name =Logarithmic type =mass pdf cdf parameters =0 < p < 1! support =k in {1,2,3,dots}! pdf =frac{ 1}{ln(1 p)} ; frac{;p^k}{k}! cdf =1 + frac{Beta p(k+1,0)}{ln(1 p)}! mean =frac{ 1}{ln(1 p)} ; frac{p}{1 p}! median = mode …   Wikipedia

• mean — A statistical measurement of central tendency or average of a set of values, usually assumed to be the arithmetic m. unless otherwise specified. [M.E., mene fr. O.Fr., fr. L. medianus, in the middle] arithmetic m. the m. calculated by adding a… …   Medical dictionary

• mean — arithmetic mean; n. the average of a group of observations calculated by adding their values and dividing by the number in the group. When one or more observations are substantially different from the rest, which can influence the arithmetic mean …   The new mediacal dictionary

• Stolarsky mean — In mathematics, the Stolarsky mean of two positive real numbers x,y is defined as: :egin{matrix}S p(x,y) = lim {(xi,eta) o(x,y)} left({frac{xi^p eta^p}{p (xi eta) ight)^{1over p 1} = egin{cases}x mbox{if }x=y left({frac{x^p y^p}{p (x y)… …   Wikipedia

• Contraharmonic mean — In mathematics, a contraharmonic mean is a function complementary to the harmonic mean. The contraharmonic mean is a special case of the Lehmer mean, L2. Contents 1 Definition 2 Properties 3 Explication …   Wikipedia

• Detailed logarithmic timeline — Main article: logarithmic timeline This timeline allows one to see the whole history of the universe, the Earth, and mankind in one table. Each row is defined in years ago, that is, years before the present date, with the earliest times at the… …   Wikipedia

• Geometric mean — The geometric mean, in mathematics, is a type of mean or average, which indicates the central tendency or typical value of a set of numbers. It is similar to the arithmetic mean, which is what most people think of with the word average, except… …   Wikipedia