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  2. Generating function - Wikipedia

    en.wikipedia.org/wiki/Generating_function

    Similar asymptotic analysis is possible for exponential generating functions; with an exponential generating function, it is ⁠ a n / n! ⁠ that grows according to these asymptotic formulae. Generally, if the generating function of one sequence minus the generating function of a second sequence has a radius of convergence that is larger than ...

  3. Generating function transformation - Wikipedia

    en.wikipedia.org/wiki/Generating_function...

    Series multisection provides formulas for generating functions enumerating the sequence {+} given an ordinary generating function () where ,, , and <.In the first two cases where (,):= (,), (,), we can expand these arithmetic progression generating functions directly in terms of ():

  4. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    Exponentiation with negative exponents is defined by the following identity, which holds for any integer n and nonzero b: =. [1] Raising 0 to a negative exponent is undefined but, in some circumstances, it may be interpreted as infinity (). [24]

  5. Exponential distribution - Wikipedia

    en.wikipedia.org/wiki/Exponential_distribution

    In probability theory and statistics, the exponential distribution or negative exponential distribution is the probability distribution of the distance between events in a Poisson point process, i.e., a process in which events occur continuously and independently at a constant average rate; the distance parameter could be any meaningful mono-dimensional measure of the process, such as time ...

  6. Matrix exponential - Wikipedia

    en.wikipedia.org/wiki/Matrix_exponential

    It is used to solve systems of linear differential equations. In the theory of Lie groups, the matrix exponential gives the exponential map between a matrix Lie algebra and the corresponding Lie group. Let X be an n×n real or complex matrix. The exponential of X, denoted by e X or exp(X), is the n×n matrix given by the power series = =!

  7. List of probability distributions - Wikipedia

    en.wikipedia.org/wiki/List_of_probability...

    The Dirichlet negative multinomial distribution, a generalization of the beta negative binomial distribution. The generalized multivariate log-gamma distribution; The Marshall–Olkin exponential distribution; The continuous-categorical distribution, an exponential family supported on the simplex that generalizes the continuous Bernoulli ...

  8. Exponential growth - Wikipedia

    en.wikipedia.org/wiki/Exponential_growth

    Parameters (negative in the case of exponential decay): The growth constant k is the frequency (number of times per unit time) of growing by a factor e ; in finance it is also called the logarithmic return, continuously compounded return , or force of interest .

  9. Ramp function - Wikipedia

    en.wikipedia.org/wiki/Ramp_function

    It can be expressed by numerous definitions, for example "0 for negative inputs, output equals input for non-negative inputs". The term "ramp" can also be used for other functions obtained by scaling and shifting , and the function in this article is the unit ramp function (slope 1, starting at 0).