 Conservation of energy from time-translation invariance

ID: conservation-of-energy-from-time-translation-invariance

Codex  0 Created 2026-09-24 Updated 2026-10-03

A Lagrangian with no explicit time dependence conserves

E = \sum_{i} \overset{q}{˙}_{i} \partial L / \partial \overset{q}{˙}_{i} - L

 New to topics? Read the docs here!