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Implement \neq and \notin via macros like LaTeX's (#1400)

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* Implement \neq and \notin via macros like LaTeX's

* Fix test
This commit is contained in:
Erik Demaine
2018-06-03 16:01:17 -04:00
committed by Kevin Barabash
parent 97d6229e9b
commit 3d5826c1da
6 changed files with 17 additions and 9 deletions
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11
src/macros.js
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@@ -223,6 +223,17 @@ defineMacro("\\llap", "\\mathllap{\\textrm{#1}}");
defineMacro("\\rlap", "\\mathrlap{\\textrm{#1}}");
defineMacro("\\clap", "\\mathclap{\\textrm{#1}}");
// Negated symbols from base/fontmath.ltx:
// \def\neq{\not=} \let\ne=\neq
// \DeclareRobustCommand
// \notin{\mathrel{\m@th\mathpalette\c@ncel\in}}
// \def\c@ncel#1#2{\m@th\ooalign{$\hfil#1\mkern1mu/\hfil$\crcr$#1#2$}}
defineMacro("\\neq", "\\not=");
defineMacro("\\ne", "\\neq");
defineMacro("\u2260", "\\neq");
defineMacro("\\notin", "\\mathrel{{\\in}\\mathllap{/\\mskip1mu}}");
defineMacro("\u2209", "\\notin");
// Unicode stacked relations
defineMacro("\u2258",
"\\mathrel{=\\kern{-1em}\\raisebox{0.4em}{$\\scriptsize\\frown$}}");