expression, noun
principle of least action
A fundamental principle in physics stating that the path taken by a physical system is the one that minimizes the action.
最小作用の原理は、古典力学から場の理論まで幅広く応用される。
The principle of least action is widely applied from classical mechanics to field theory.
A direct translation of the English term 'principle of least action', composed of 最小 (least), 作用 (action), and 原理 (principle).