Limits of Multivariable Functions Part 1

In this video we look at the epsilon delta and sequence characterisation for limits of multivariable functions.

[swartzsteinswartzstein]

thank you Elliot. You're such an amazing intelligent teacher. You know so much. I've learned everything that I know from you, all the math that I know is thanks to you and your videos. I would donate to you if I could!

[Rene-uzeb]

I just realized that I wouldn't be able to navigate by myself if I had had to figure out what was worth my time.
For me, what I learned is that all proofs come down to one or at most two essential, simple relationships between entities. Most of the time people only care about presenting results in the context of doing something very complicated, to show their competence.
In terms of math that I find you can actually use practically: multivariate calculus, differential calculus (I love the subject, but it's borderline for me because in typical math abstract fashion every author goes on forever and ever like there was only time left, to get to one point), physics but with a pinch of salt, Linear algebra. For bayesian probability, the only book that resolves/explains what it is properly is 'The Science of Logic'. Without this probability doesn't make sense. Measure theory I throw into the garbage.
My trick after school if I was interested in something new I would go to the bookstores of the top universities in the field and check what books their course recommends.

[Aengrod]

Wait, I just watched three part series on co-amoxiclav, and now I'm watching multivariable functions. Elliot, are you new renaissance man, or a polymath?
Update: nvm, just read your profile. Extremely impressive.