Talk:Gradient

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What does it mean "when gradient exists"? In the text it states it exists when partial derivatives exist and this a definition as any other, if there is no other convention in place. I think the question needs be more specific. --Milen

I assume you're referring to Definition:Gradient. In fact, it appears that the existence condition was added by the same user who added the template; which, I presume means (s)he wanted someone to verify whether the condition is the correct one. It is, so the template can go. --barto (talk) (contribs) 11:24, 4 December 2017 (EST)