RE: How to calculate the relative extrema of a cubic function by applying the criterion of the first derivative?

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I will take into account your considerations for a future publication, since the objective of this one was to use the criterion of the first derivative. I will take into account the criterion of the second derivative for my next publication.

Greetings, I hope to continue reading your comments in my next posts.

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since the objective of this one was to use the criterion of the first derivative.

My comment was trigger by exactly that thought. As I said, it can be misleading if the second is zero as well. In that case you might think you found an extreme while you are actually hitting on a saddle. While at it I added the discussion point about the difference between max and min.

Sorry if that was too exhausting, once I get triggered by math I cannot resist :-P

!BBH

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Hello friend, of course I understand you, we are in contact, thanks for encouraging a good debate.

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