I'm happy to report that the 5th edition of my book "Linear Programming: Foundations and Extensions" is now officially published...
https://vanderbei.princeton.edu/LPbook/index.html
PS. The online version of the book contains many many direct links to newly updated versions of my online pivot tools making the tools easier to use and the ideas/algorithms easier to learn.
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Robert Vanderbei
Professor
Princeton University
Princeton NJ
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