# FxPaul

Math in finance or vice versa

## Archive for the ‘quantum mechanics’ Category

In physics, action is an attribute of system dynamics. By definition it is a functional over trajectory or history of the system:
$S = \int_0^T L\left(q(t),\dot{q}(t),t\right) dt$
where L is the Lagrangian. The real beauty of such description lies in developed and well studied mechanism of equation solutions.

Written by fxpaul

February 10, 2012 at 09:20