My apologies on that. Oddly, this is why I don't typically post from my phone, as it is far easier for me to get the clean link that way.

Clean link: https://www.amazon.com/dp/1107658799

Book title: A Gentle Introduction to Optimization by by B. Guenin (Author), J. Könemann (Author), L. Tunçel (Author)

I would assume largely similarly? https://www.amazon.com/gp/product/1107658799/ is the book I last went through on this and it covers a lot of the same ideas. In particular, I'm assuming the section of this post that aims to minimize some value are directly using the same stuff.