(T-V is a Lagrangian - it is not unique) This quantity is important in Lagrangian mechanics: see principle of least action.
... 94.37% White, 1.11% African American, 0.18% Native American, 1.74% Asian, 0.01% Pacific Islander, 1.21% from other races, and 1.38% from two or more races. 7.06% of the ...