What is Lagrangian mechanics?

The "Lagrangian formulation" of Newtonian mechanics is based on equation (1c), which, again, is just an alternate form of Newton's laws which is applicable in cases where the forces are conservative. read more

Lagrangian mechanics is widely used to solve mechanical problems in physics and when Newton's formulation of classical mechanics is not convenient. Lagrangian mechanics applies to the dynamics of particles, while fields are described using a Lagrangian density. read more

Basic Lagrangian Mechanics This page contains an extremely simple but (hopefully!) informative introduction to Lagrangian mechanics. "Lagrangian mechanics" is, fundamentally, just another way of looking at Newtonian mechanics. read more