Etymology
The word "parameter" comes from the Greek preposition παρά (para), meaning "beside, along, beyond", and the noun μέτρον (metron), meaning "measure".
Meaning and Origin
In mathematics, a parameter is a constant or variable that defines a characteristic of a mathematical object or system. Parameters are used to describe the properties or behavior of objects such as curves, surfaces, or equations.
The term "parameter" was first used in mathematics by Apollonius of Perga in the 3rd century BC to describe the parameters of a circle, which are the radius and the center. Since then, the concept of a parameter has been extended to other areas of mathematics and science.
In statistics, parameters are unknown constants or variables that characterize a population. They are estimated from sample data and used to make inferences about the population.
In computer science, parameters are data values passed to a function or subroutine. They can be used to control the behavior of the function or to provide additional information.
In engineering and physics, parameters are constants or variables that describe the properties of a system or material. For example, the parameters of a circuit might include resistance, capacitance, and inductance.
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