作さ用よう積せき分ぶん

noun

action integral

Technical term in physics, specifically in Lagrangian and Hamiltonian mechanics, referring to the integral of the Lagrangian over time.

• 最さい小しょう作さ用ようの原げん理りでは、作さ用よう積せき分ぶんが停てい留りゅう値ちをとる経けい路ろが実じつ現げんされる。

  In the principle of least action, the path that makes the action integral stationary is realized.