TITLE: Remainder Taylor series two+ variables
QUESTION [9 upvotes]: Hard to find an article /  tutorial specifically about this subject online....
Can anyone explain / send link to explanation or tutorial regarding how to calculate remainder for multi-variable taylor series?
Thanks much!

REPLY [3 votes]: You can check this file "Higher-Order Derivatives and Taylor’s Formula in Several Variables"
By: G. B. Folland
https://sites.math.washington.edu/~folland/Math425/taylor2.pdf