Inertial Transformation Extended to the General Case
The assumption of a privileged frame of reference entails a special type of transformation, different from the Lorentz transformation. The simplest form of this special type, here called ?inertial transformation? (IT), applies to the special case where one system is privileged. The present paper deduces the general type of inertial transformation, including cases of both systems in absolute motion, with their absolute velocity vectors directed relative to each other at any angle between 0 and (Pi).