four-dimensional operator — An Etymological Dictionary of Astronomy and Astrophysics

four-dimensional operator

آپارگر ِ چهار-وامونی

âpârgar-e cahâr-vâmuni

Fr.: opérateur à quatre dimensions

An operator defined as: ▫ = (∂/∂x, ∂/∂y, ∂/∂z, 1/(jc∂/∂t).

See also: → four; → dimensional; → operator.