e/Symplectic integrator

Information
has gloss	eng: In mathematics, a symplectic integrator (SI) is a numerical integration scheme for a specific group of differential equations related to classical mechanics and symplectic geometry. Symplectic integrators form the subclass of geometric integrators which, by definition, are canonical transformations. They are widely used in molecular dynamics, discrete element methods, accelerator physics, and celestial mechanics.
lexicalization	eng: symplectic integrator
instance of	e/Numerical ordinary differential equations