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  2. Multiplier (economics) - Wikipedia

    en.wikipedia.org/wiki/Multiplier_(economics)

    In macroeconomics, a multiplier is a factor of proportionality that measures how much an endogenous variable changes in response to a change in some exogenous variable. For example, suppose variable x changes by k units, which causes another variable y to change by M × k units.

  3. Lehmer random number generator - Wikipedia

    en.wikipedia.org/wiki/Lehmer_random_number_generator

    The general formula is + =, where the modulus m is a prime number or a power of a prime number, the multiplier a is an element of high multiplicative order modulo m (e.g., a primitive root modulo n), and the seed X 0 is coprime to m.

  4. Fiscal multiplier - Wikipedia

    en.wikipedia.org/wiki/Fiscal_multiplier

    The multipliers showed that any form of increased government spending would have more of a multiplier effect than any form of tax cuts. The most effective policy, a temporary increase in food stamps, had an estimated multiplier of 1.73. The lowest multiplier for a spending increase was general aid to state governments, 1.36.

  5. Lagrange multiplier - Wikipedia

    en.wikipedia.org/wiki/Lagrange_multiplier

    In mathematical optimization, the method of Lagrange multipliers is a strategy for finding the local maxima and minima of a function subject to equation constraints (i.e., subject to the condition that one or more equations have to be satisfied exactly by the chosen values of the variables). [1]

  6. List of mathematical abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical...

    PGL – projective general linear group. Pin – pin group. pmf – probability mass function. Pn – previous number. Pr – probability of an event. (See Probability theory. Also written as P or.) probit – probit function. PRNG – pseudorandom number generator. PSL – projective special linear group.

  7. Multiplication - Wikipedia

    en.wikipedia.org/wiki/Multiplication

    A very general, and abstract, concept of multiplication is as the "multiplicatively denoted" (second) binary operation in a ring. An example of a ring that is not any of the above number systems is a polynomial ring (polynomials can be added and multiplied, but polynomials are not numbers in any usual sense).

  8. Multiplier - Wikipedia

    en.wikipedia.org/wiki/Multiplier

    Multiplier (Fourier analysis), an operator that multiplies the Fourier coefficients of a function by a specified function (known as the symbol) Multiplier of orbit, a formula for computing a value of a variable based on its own previous value or values; see Periodic points of complex quadratic mappings

  9. Multiplier (Fourier analysis) - Wikipedia

    en.wikipedia.org/wiki/Multiplier_(Fourier_analysis)

    Then the multiplier operator = associated to this symbol m is defined via the formula T f ^ ( ξ ) := m ( ξ ) f ^ ( ξ ) . {\displaystyle {\widehat {Tf}}(\xi ):=m(\xi ){\hat {f}}(\xi ).} In other words, the Fourier transform of Tf at a frequency ξ is given by the Fourier transform of f at that frequency, multiplied by the value of the ...