How to write a not equal to sign in Latex pseudocode

Question

How do I write not equal to sign (equivalent of != in C) in Latex pseudocode.

Or, what doesn't work for you using != – Brent.Longborough Jul 18 '12 at 09:38 — Brent.Longborough, Jul 18 '12 at 09:38

score 140 · Answer 1 · answered Jul 18 '12 at 09:26

140

Not equal can be written as:

\neq

answered Jul 18 '12 at 09:26

Alin Huruba

score 6 · Answer 2 · answered Jul 05 '20 at 23:54

6

If you want a literal != in a pseudocode listing, you can use \mathrel{\mathtt{!=}}. You could also use ≠ from the monospace font.

Unicode also has the symbol ⍯ from APL. It’s U+236F, and you can use it in LuaLaTeX or XeLaTeX.

answered Jul 05 '20 at 23:54

Davislor

score 2 · Answer 3 · edited Jul 05 '20 at 23:26

2

$\neg$ is - and $\not=$ is the equal sign with the slash through the center

edited Jul 05 '20 at 23:26

M. Al Jumaily

answered Jul 05 '20 at 23:06

Ohana

score -1 · Answer 4 · edited Oct 17 '23 at 17:47

-1

I would add that if you are using RMarkdown, to have the symbol ≠ translate to a PDF you can use either $\neq$ or $\not=$ .

edited Oct 17 '23 at 17:47

JamesT

answered Oct 17 '23 at 17:09

Lidka

4 Answers4