
Supplement on Lagrangian, Hamiltonian Mechanics
... being held constant has to be determined from the context. • Thus ∂L/∂ q̇j in TM always means the variable list is q1 , q2 , . . . qs , q̇1 , q̇2 , . . . q̇s , t, because by convention the Lagrangian L depends on these variables. We could make it depend on some other set of variables, but then it wo ...
... being held constant has to be determined from the context. • Thus ∂L/∂ q̇j in TM always means the variable list is q1 , q2 , . . . qs , q̇1 , q̇2 , . . . q̇s , t, because by convention the Lagrangian L depends on these variables. We could make it depend on some other set of variables, but then it wo ...