# uneven subscripts #804

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opened this issue Apr 29, 2014 · 6 comments

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### pkra commented Apr 29, 2014

 I saw this on TeX.SE -- I was not sure if that's expected behavior or not. $|x_n y_n - xy|<\epsilon$ in TeX has slightly uneven subscripts (as opposed to TeX).
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### pkra commented May 7, 2014

 Similarly the following example has the second underbrace lower than the first.  c = a real + b imaginary complex number [/itex] 

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### dpvc commented May 12, 2014

 The problem in the second example is because the ⅈ is not in the TeX fonts, and so it uses a unicode reference for it and doesn't know the bounding box for it, so uses the full height and depth. That makes MathJax think that the bi is lower than the a, and so the brace is lower. If you uses STIX fonts, you should see them both being the same depth.
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### pkra commented May 12, 2014

 Ah, thanks. So that leaves just the OP.

### dpvc pushed a commit to dpvc/MathJax that referenced this issue Sep 14, 2014

 Use proper value of base scaling to reset u and v in super- and subsc… 
…ript positioning. Resolves issue mathjax#804.
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### dpvc commented Sep 14, 2014

 It turns out that the HTML-CSS subscript positioning wasn't taking one of the scaling values into account properly. I have fixed this in the issue804 branch of my fork of MathJax includes the fix. Note that this only affected the HTML-CSS output (SVG did it correctly).

### dpvc pushed a commit to dpvc/MathJax that referenced this issue Nov 2, 2014

 Merge branch 'issue804' into develop. Issue mathjax#804. 
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### dpvc commented Nov 13, 2014

 ==> Merged (Nov. 2)

### dpvc pushed a commit to mathjax/MathJax-test that referenced this issue Jan 17, 2015

 Add test for subscript positions. (mathjax/MathJax#804) 
 74ea234 

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### dpvc commented Jan 17, 2015

 ==> In Testsuite MathMLToDisplay/Presentation/ScriptsAndLimits/issue804.html