A value kept constant during an experiment, equation, calculation or similar, but varied over other versions of the experiment, equation, calculation, etc.

plural of parameter

(programming) A value supplied to a method or function, as opposed to a formal parameter.

(programming) An abstract representation, typically including a name and a type, of a parameter expected to be passed to a method or function.

Any of a set of parameters for a quasi-experimental model used to describe the directional reflectance properties of the airless regolith surfaces of bodies in the Solar System.

plural of actual parameter

plural of formal parameter

plural of Hapke parameter

(statistics) A parameter of the distribution of a population that is not directly relevant to solving the significance test or estimate problem under consideration.

(relativity) speed divided by the speed of light, symbol β