# Multiplier

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**Multiplier** may refer to:

## Mathematics

- [Multiplier (arithmetic)](/source/Multiplier_(arithmetic)), the number of multiples being computed in multiplication
- [Constant multiplier](/source/Constant_multiplier), a constant factor with units of measurement
- [Lagrange multiplier](/source/Lagrange_multiplier), a scalar variable used in mathematics to solve an optimisation problem for a given constraint
- [Multiplier (Fourier analysis)](/source/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](/source/Periodic_points_of_complex_quadratic_mappings)
- [Characteristic multiplier](/source/Characteristic_multiplier), an eigenvalue of a monodromy matrix
- [Multiplier algebra](/source/Multiplier_algebra), a construction on C*-Algebras and similar structures

## Electrical engineering

- [Binary multiplier](/source/Binary_multiplier), a digital circuit to perform rapid multiplication of two numbers in binary representation
- [Analog multiplier](/source/Analog_multiplier), a device that multiplies two analog signals
- [Frequency multiplier](/source/Frequency_multiplier), a device that generates a signal at an integer multiple of its input frequency
- [Voltage multiplier](/source/Voltage_multiplier), an electrical circuit that converts AC electrical power from a lower voltage to a higher DC voltage.
- [Schweigger multiplier](/source/Schweigger_multiplier), an early galvanometer

## Macroeconomics

- [Multiplier (economics)](/source/Multiplier_(economics)), any measure of the proportional effect of an exogenous variable on an endogenous variable
- [Fiscal multiplier](/source/Fiscal_multiplier), the ratio of the change in aggregate demand to the change in government spending that caused it
- [Money multiplier](/source/Money_multiplier), the ratio of the money generated by the banking system to the central bank's increase in the monetary base that caused it

## Others

- [Force multiplier](/source/Force_multiplier), in warfare a factor that dramatically increases the combat-effectiveness of a given military force
- A multiplier [fishing reel](/source/Fishing_reel) creates less friction when casting
- A [CPU multiplier](/source/CPU_multiplier) allows a CPU to perform more cycles per single cycle of the front side bus
- [Multiplier (linguistics)](/source/Multiplier_(linguistics)), an adjective indicating number of times something is to be multiplied
- *[Multipliers: How the Best Leaders Make Everyone Smarter](/source/Multipliers:_How_the_Best_Leaders_Make_Everyone_Smarter)*

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Adapted from the Wikipedia article [Multiplier](https://en.wikipedia.org/wiki/Multiplier) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Multiplier?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.