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  2. Laplace transform - Wikipedia

    en.wikipedia.org/wiki/Laplace_transform

    Eq.1) where s is a complex frequency domain parameter s = σ + i ω , {\displaystyle s=\sigma +i\omega ,} with real numbers σ and ω . An alternate notation for the Laplace transform is L { f } {\displaystyle {\mathcal {L}}\{f\}} instead of F . The meaning of the integral depends on types of functions of interest. A necessary condition for existence of the integral is that f must be locally ...

  3. Arrhenius equation - Wikipedia

    en.wikipedia.org/wiki/Arrhenius_equation

    Arrhenius equation. In physical chemistry, the Arrhenius equation is a formula for the temperature dependence of reaction rates. The equation was proposed by Svante Arrhenius in 1889, based on the work of Dutch chemist Jacobus Henricus van 't Hoff who had noted in 1884 that the van 't Hoff equation for the temperature dependence of equilibrium ...

  4. Exponential backoff - Wikipedia

    en.wikipedia.org/wiki/Exponential_backoff

    Exponential backoff is an algorithm that uses feedback to multiplicatively decrease the rate of some process, in order to gradually find an acceptable rate. These algorithms find usage in a wide range of systems and processes, with radio networks and computer networks being particularly notable.

  5. Exponential integral - Wikipedia

    en.wikipedia.org/wiki/Exponential_integral

    Definitions. For real non-zero values of x, the exponential integral Ei ( x) is defined as. The Risch algorithm shows that Ei is not an elementary function. The definition above can be used for positive values of x, but the integral has to be understood in terms of the Cauchy principal value due to the singularity of the integrand at zero. For ...

  6. Exponential field - Wikipedia

    en.wikipedia.org/wiki/Exponential_field

    In mathematics, an exponential field is a field with a further unary operation that is a homomorphism from the field's additive group to its multiplicative group. This generalizes the usual idea of exponentiation on the real numbers, where the base is a chosen positive real number.

  7. Wheat and chessboard problem - Wikipedia

    en.wikipedia.org/wiki/Wheat_and_chessboard_problem

    The exercise of working through this problem may be used to explain and demonstrate exponents and the quick growth of exponential and geometric sequences. It can also be used to illustrate sigma notation. When expressed as exponents, the geometric series is: 2 0 + 2 1 + 2 2 + 2 3 + ... and so forth, up to 2 63. The base of each exponentiation ...

  8. Exponential dispersion model - Wikipedia

    en.wikipedia.org/wiki/Exponential_dispersion_model

    Exponential dispersion model. In probability and statistics, the class of exponential dispersion models ( EDM ), also called exponential dispersion family ( EDF ), is a set of probability distributions that represents a generalisation of the natural exponential family. [1] [2] [3] Exponential dispersion models play an important role in ...

  9. Logarithmic growth - Wikipedia

    en.wikipedia.org/wiki/Logarithmic_growth

    Logarithmic growth. In mathematics, logarithmic growth describes a phenomenon whose size or cost can be described as a logarithm function of some input. e.g. y = C log ( x ). Any logarithm base can be used, since one can be converted to another by multiplying by a fixed constant. [1] Logarithmic growth is the inverse of exponential growth and ...