Talk:Fourier–Motzkin elimination

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Untitled

why on earth are variable denoted with \xi ? What's wrong with regular old "x"? The overuse of Greek symbols does nothing but put people off

Ghaa!! Shun all who want to cheapen mathematics by making it easier to learn!! LoL

"Double-exponential computational complexity" isn't too clear. How about an explanation in Big-Oh notation? — Preceding unsigned comment added by 91.152.246.210 (talk) 19:57, 12 May 2012 (UTC)[reply]

Appears not to be correct

"Define the history $H_{i}$ of an inequality $i$ as the set of indexes of inequalities from the initial system $S$ used to produce $i$ .

[...]

A variable $x_{j}$ is in the set as soon as at least one inequality in the history $H_{i}$ of $i$ results from the elimination of $x_{j}$ ."

AFAICT, the underlined part cannot be correct. NO inequalities in $H_{i}$ result from any elimination, since these are the starting set. I suppose it should instead say something like "... the elimination of $x_{j}$ is involved anywhere in the process of creating $i$ "? 2A00:23C8:7B09:FA01:40CB:9260:295F:C18E (talk) 21:21, 27 August 2023 (UTC)[reply]