Parameter definition. A parameter is a quantity that influences the output or behavior of a mathematical object but is viewed as being held constant. Parameters are closely related to variables, and the difference is sometimes just a matter of perspective.

What is the main function of a parameter?

A parameter is a named variable passed into a function. Parameter variables are used to import arguments into functions.

What is the purpose of a parameter in a function?

Parameters allow us to pass information or instructions into functions and procedures . They are useful for numerical information such as stating the size of an object. Parameters are the names of the information that we want to use in a function or procedure. The values passed in are called arguments.