[問題] Lagarangian自變數是獨立的?
. .
一般而言,L(q, q, t)中的q、q、t被視為independent variables,究竟是為什麼?
. .
在動力學中,q、q不都是t的函數嗎?而且q和q視為獨立也難以給出滿意的解釋。
請教各位。
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