The chapters in this tutorial are from the following book that also contains chapters on geometric programming, dynamic programming, single variable search and the calculus of variations. It is available on Amazon as an ebook and print editions.
Ralph W. Pike, Essentials of Optimization for Chemical Engineering, Kindle Direct Publishing, ISBN-13: 978-1645700968 ASIN: 1645700968 print edition, ASIN: B07ZWNFMWC e-book edition (2019)
On-Line Optimization (Real Time Optimization)