# simulation

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## Simulation

The use of a mathematical model to imitate a situation many times in order to estimate the likelihood of various possible outcomes. See: Monte Carlo simulation.

## Simulation

The use of a mathematical model with different values as variables in order to determine the likelihood of a particular outcome. A simulation is run many times (often thousands) in order to find the most likely outcome. Running simulations is important for analysts who, for example, wish to predict a security's future price movements.

## simulation

A mathematical exercise in which a model of a system is established, then the model's variables are altered to determine the effects on other variables. For example, a financial analyst might construct a model for predicting a stock's market price and then manipulate various determinants of the price including earnings, interest rates, and the inflation rate to determine how each of these changes affects the market price.

## simulation

a technique for dealing with complex resource allocation problems which cannot be solved exactly by LINEAR PROGRAMMING or similar analytical methods. The technique involves creating a typical life history of a system to represent the actual problem and its rules of operation. Repeated runs of the simulation, slightly altering the operating rules each time, provides experimentation aimed at discovering methods of improving the performance of the system. Such simulation techniques are frequently employed in examining STOCKHOLDING and QUEUE problems. For example, in simulating a queue problem, such as cars queuing at a petrol-station forecourt, it is possible to note how well existing service facilities are coping with customers and the extent to which existing service capacity is utilized. It is also possible to investigate the effects of such changes as increasing the number of service channels or changing the arrangement of channels to discover ways of improving the performance of the garage.
References in periodicals archive ?
Martinez continues, "In the simulator we can add night vision goggles or forward looking infra-red devices, reduce light levels, or add the weather to obscure the visual cues, and then introduce threat that can 'shoot' them out of the sky.
The RT-LAB Electric Drive Simulator also includes ARTEMIS from Opal-RT--a library of specialized solvers that enhances the Simulink Power Systems Blockset in order to address all computational issues discussed above, as well as some circuit-simulation-specific problems.
Most simulator rides have only three degrees of freedom--Spider-Man has all six.
You end up having games that start to look like real simulators, if you will.
It may be hard to locate the link behind a bowling alley, a movie theater and an Indy race car, but Peter Beale thinks he's found it - in the \$15 million, high-tech racing simulators his Westlake Village company, Illusion Inc.
Despite positive reviews from the bobsledders, who contend that the simulator did improve their performances, the team, alas, captured no medals.
The simulator is fixed on a unique vibration platform that imitates the aerodynamic effects that occur during flight maneuvers such as take-off, touchdown and sharp-angle attack flights.
At issue is the safety of DOD's electromagnetic-pulse (EMP) simulators -- facilities used to test the vulnerability of strategic military systems to EMPs.
With the SGI image generator, the AVCATT-A simulators can provide fully correlated, out-the-window and sensor-based imagery and create a wide range of simulated conditions that include battlefield smoke; blowing snow; dust or sand; and temperature, wind, visibility and cloud ceiling.
The new TurboXim fast-functional simulator simulates the instruction set of Xtensa or Diamond Standard processors.
Cuts Simulation Time to Less Than 24 Hours - Competitive Simulator Took 26 Days

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