The Location of Minima and Maxima in Functions of Several Variables

[@MathTheBeautiful]

Go to LEM.MA/LA for videos, exercises, and to ask us questions directly.

[@theflaggeddragon9472]

I would add that maybe the most "fundamental" integration theorems (whatever that means) are Fubini's theorem and Stokes theorem over a manifold with boundary. I love how you say essentially the SDT is the most fundamental theorem of derivatives. It is indeed very close to my heart (I wrote an elementary proof of it last year). Great video as usual professor Grinfeld!

[@MathTheBeautiful]

Thanks! I'd love to see that proof!

[@SkanderTALEBHACINE]

Thanks alot for the effort, please there was a video before this! (it was deleted from you tube!!), where could I please find it, thanks again

[@MathTheBeautiful]

I believe it was this video that was deleted (because of audio issues). If not, do you remember what that video was about?

[@SkanderTALEBHACINE]

nothing but, just a word "fruit", excuse me, but it was the last video before this one

[@MathTheBeautiful]

That wasn't meant for public consumption yet!

[@NoActuallyGo-KCUF-Yourself]

I think you misspoke, professor, a 1:00. A function can have min/max/inflect when first derivative is undefined.

[@wendten2]

You speak with such a dedication and persuasion, that I feel a strong urge to join a facist militaristic regime, and fight to make my fatherland great again. I wish more teachers were this energetic and impactful