# simulation

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Related to Simulators: Emulators, Flight simulators

## 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 ?
As a result, aircrews have trained in Block-A-type simulators since June 2003--before the actual aircraft were delivered in November of that year
Through the use of standard PC technologies, the RT-LAB Electric Drive Simulator provides a low-risk, low-cost entry point, while maintaining the scalability to add computation power by simply adding more processors.
To create thrills, simulator rides manipulate two factors: vision and motion.
You end up having games that start to look like real simulators, if you will.
Visiting the low-slung office park off the Ventura Freeway where Illusion is putting together its simulators, Wilson literally took the simulator for a spin, running against Patrick Harmon, one of the company's test drivers who has put in perhaps 1,000 hours on the system and is annoyingly good.
The simulator computes the driver's position 100 times a second and refreshes the high-resolution graphics monitor 30 times a second.
This challenge is minimized by training on a full scope simulator as the modernization takes place.
While training in the full-mission simulator, pilots use virtual reality weapons in virtual combat situations in which they experience the re-creation of reactions and responses that occur in real life.
For instance, Congress inserted a provision into the Defense Appropriations Act, passed late last DecembeR, that prohibits the Navy from operating EMPRESS-II in the Chesapeake Bay until the Secretary of Defense certifies these tests are essential to national security and that the economic, environmental and social costs of operating the simulator elsewhere would be far greater.
SGI (NYSE: SGI) announced that it will provide its advanced high-performance visual computing equipment and servers to power the Army's new Aviation Combined Arms Tactical Trainer-Aviation Reconfigurable Manned Simulator (AVCATT-A) for Lot 1.
Nasdaq:LAVA), a provider of semiconductor design software, announced today that Faraday Technology Corporation (TSE:3035), a leading ASIC and silicon IP provider, has selected Magma's FineSim SPICE circuit simulator as the simulator of choice for its high-performance designs after it displayed better accuracy and faster runtime than a number of popular commercial circuit simulation products - cutting simulation time to less than 24 hours on designs that required 26 days to simulate with a widely used competitive simulator.

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