Before revision: Symmetry and the Beautiful Universe, Christopher T. Hill and Leon M. Lederman, Prometheus Books (2005) In mathematics, "symmetry" has a more precise definition , and is usually used to refer to an object that is invariant under some transformations ; including translation, reflection, rotation or scaling.
After revision: Symmetry and the Beautiful Universe, Christopher T. Hill and Leon M. Lederman, Prometheus Books (2005) In mathematics, the term has a more precise definition , and is usually used to refer to an object that is invariant under some transformations , such as translation, reflection, rotation or scaling.