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Would it not be more standard / look better to uses a curly for the Lagrangian rather than a regular capital L?
Blitzer99 (talk) 22:21, 2 December 2020 (UTC)
In the introduction of this page the term is defined and called the ″variation″, which is possibly erroneous (although is indeed a Gateaux derivative). Comparing with the definition of ″variation″ (of ) in the Wikipedia page virtual displacement, one finds instead that a variation is a function as well of the parameter ε. In other words, the "variation" is not equal to the "Gateaux derivative". However, it might be that the term "variation" is defined in some other way (which is then inconsistent with the definition in virtual displacement). Doubledipp (talk) 16:45, 16 April 2022 (UTC)Doubledipp
I've rewritten the lead section per MOS:INTRO to get rid of the equations and the more complicated mathematical language. All of that stuff appears later in the article, and the lead needs to provide a less technical overview of the topic.PianoDan (talk) 20:05, 25 April 2022 (UTC)
"Any variation of the functional gives an increase in the functional integral of the action."
Delete this sentence and discuss saddle point in the sentence before it. 210.61.187.232 (talk) 11:07, 17 June 2024 (UTC)