您听说过最小作用量原理吗？用变分法推导拉格朗日方程，是拉格朗日力学的起点。

来源: 蒋闻铭于 2025-12-15 16:15:16 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.