Multiplier
Encyclopedia
The term multiplier may refer to:

In electrical engineering:
  • Binary multiplier
    Binary multiplier
    A binary multiplier is an electronic circuit used in digital electronics, such as a computer, to multiply two binary numbers. It is built using binary adders....

    , a digital circuit to perform rapid multiplication of two numbers in binary representation
  • Analog multiplier
    Analog multiplier
    In electronics, an analog multiplier is a device which takes two analog signals and produces an output which is their product. Such circuits can be used to implement related functions such as squares , and square roots....

    , a device that multiplies two analog signals
  • Frequency multiplier
    Frequency multiplier
    In electronics, a frequency multiplier is an electronic circuit that generates an output signal whose output frequency is a harmonic of its input frequency. Frequency multipliers consist of a nonlinear circuit that distorts the input signal and consequently generates harmonics of the input signal...

    , a device that generates a signal at an integer multiple of its input frequency


In macroeconomics:
  • Multiplier (economics)
    Multiplier (economics)
    In economics, the fiscal multiplier is the ratio of a change in national income to the change in government spending that causes it. More generally, the exogenous spending multiplier is the ratio of a change in national income to any autonomous change in spending In economics, the fiscal...

    , any measure of the proportional effect of an exogenous
    Exogenous
    Exogenous refers to an action or object coming from outside a system. It is the opposite of endogenous, something generated from within the system....

     variable on an endogenous
    Endogeneity (economics)
    In an econometric model, a parameter or variable is said to be endogenous when there is a correlation between the parameter or variable and the error term. Endogeneity can arise as a result of measurement error, autoregression with autocorrelated errors, simultaneity, omitted variables, and sample...

     variable
  • Fiscal multiplier, a term that measures how much aggregate demand changes in response to a change in spending
  • Money multiplier
    Money multiplier
    In monetary economics, a money multiplier is one of various closely related ratios of commercial bank money to central bank money under a fractional-reserve banking system. Most often, it measures the maximum amount of commercial bank money that can be created by a given unit of central bank money...

    , a term that measures how much money the banking system generates when the central bank
    Central bank
    A central bank, reserve bank, or monetary authority is a public institution that usually issues the currency, regulates the money supply, and controls the interest rates in a country. Central banks often also oversee the commercial banking system of their respective countries...

     increases the monetary base
    Monetary base
    In economics, the monetary base is a term relating to the money supply , the amount of money in the economy...



In warfare:
  • Force multiplier, a factor that dramatically increases the combat-effectiveness of a given military force.


In mathematics:
  • Lagrange multiplier, a scalar variable used in mathematics to solve an optimisation problem for a given constraint.
  • multiplier (Fourier analysis)
    Multiplier (Fourier analysis)
    In Fourier analysis, a multiplier operator is a type of linear operator, or transformation of functions. These operators act on a function by altering its Fourier transform. Specifically they multiply the Fourier transform of a function by a specified function known as the multiplier or symbol...

    , an operator that multiplies the Fourier coefficients of a function by a specified function (known as the symbol).
  • multiplier of orbit
    Periodic points of complex quadratic mappings
    This article describes periodic points of some complex quadratic maps. A map is a formula for computing a value of a variable based on its own previous value or values; a quadratic map is one that involves the previous value raised to the powers one and two; and a complex map is one in which the...

  • Characteristic multiplier
    Characteristic multiplier
    In mathematics, and particularly ordinary differential equations, a characteristic multiplier is an eigenvalue of a monodromy matrix. The logarithm of a characteristic multiplier is also known as characteristic exponent...

  • Multiplier algebra
    Multiplier algebra
    In C*-algebras, the multiplier algebra, denoted by M, of a C*-algebra A is a unital C*-algebra which is the largest unital C*-algebra that contains A as an ideal in a "non-degenerate" way. It is the noncommutative generalization of Stone–Čech compactification...

    , a construction on C*-Algebras and similar structures.


In fishing:
  • A multiplier fishing reel
    Fishing reel
    A fishing reel is a "cylindrical device attached to a fishing rod used in winding the line". Modern fishing reels usually have fittings which make it easier to retrieve the line and deploy it for better accuracy or distance. Fishing reels are traditionally used in the recreational sport of angling...

     creates less friction when casting.


In clock signal:
  • A CPU multiplier
    CPU multiplier
    In computing, the clock multiplier measures the ratio of an internal CPU clock rate to the externally supplied clock. A CPU with a 10x multiplier will thus see 10 internal cycles for every external clock cycle...

     allows a CPU to perform more cycles per single cycle of the front side bus.


In lotteries
  • The PowerPlay
    Powerplay
    "Power play" is a sporting term used in various games.*In ice hockey, a team is said to be on a power play when at least one opposing player is serving a penalty, and the team has a numerical advantage on the ice...

     is a multiplier for the lower-tier prizes in the US Powerball
    Powerball
    Powerball is an American lottery game sold in 44 jurisdictions as a shared jackpot game. It is coordinated by the Multi-State Lottery Association , a non-profit organization formed by an agreement with lotteries. Powerball is a game whose advertised jackpot starts at $20 million and can roll into...

     game. In the rival Mega Millions
    Mega Millions
    Mega Millions is a US multi-jurisdictional $1 lottery game. Since it replaced The Big Game in May 2002 , Mega Millions' advertised jackpots have started at $12 million, paid in 26 yearly installments , increasing when there is no jackpot winner...

    , it exists only in Texas
    Texas Lottery
    The Texas Lottery is the government-operated lottery available throughout Texas. It is operated by the Texas Lottery Commission, headquartered in downtown Austin.-History:...

    , and is known as the Megaplier. Some lotteries that sell Powerball also offer Hot Lotto
    Hot Lotto
    Hot Lotto is administered by the U.S.' Multi-State Lottery Association , which also operates the Powerball game. Hot Lotto is available in some of the 33 MUSL jurisdictions; Maine is the latest to join, in October 2009. The first drawing was on April 10, 2002 as part of MUSL celebrating the 10th...

    ; whose Sizzler (known in North Dakota
    North Dakota Lottery
    The North Dakota Lottery is run by the government of North Dakota. The Lottery began in 2004. It is unique among US lotteries in that it is allowed only to offer multi-jurisdictional games, i.e., North Dakota-only games cannot be sold. As a result, all of its games are part of the Multi-State...

    as Triple Sizzler) automatically triples non-jackpot prizes.
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