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10

It is not a bug. Your large "A" operator sits on the baseline just as a large "A" would; that is its natural position. The summation sign is centered on the math axis, and that is its natural position. In order to center the "A" on the math axis, you need to use \vcenter. In actual $\rm\TeX$ (or $\rm\LaTeX$), this takes a bit ...


8

I can confirm that it is a MathJax (as opposed to SE) issue, as I can reproduce it outside of this site. It doesn't happen in LaTeX. As a workaround, you can use $\tilde {f_k}$: $\tilde {f_k}$


6

Moderators don’t have (to my knowledge) the ability to add features to the site. But there already exists something like this in the meta site, the Sandbox. IMO this is too bothersome to bother with, I personally just deal with the raw LaTeX code which I am very used to. Furthermore, while it is true that the mobile website doesn’t let give you a preview of ...


2

$\DeclareMathOperator{\A}{\vcenter{\LARGE\mathrm A}}\DeclareMathOperator*{\varA}{\vcenter{\mathchoice{\LARGE\text{A}}{\Large\text{A}}{\Large\text{A}}{\large\text{A}}}}\DeclareMathOperator*{\varvarA}{\vphantom{\sum}\vcenter{\mathchoice{\LARGE\text{A}}{\Large\text{A}}{\Large\text{A}}{\large\text{A}}}}$Basically @DavideCervone's answer has solved the aligning ...


1

For those with little experience in LaTeX, the best on-site source to consult is mathjax basic tutorial and quck reference. This site uses MathJax software and MathJax relies a lot on LaTeX commands (not all), surrounded by dollar-signs. The tutorial will help you get up to speed in no time. When I started here, I became very familiar with MathJax by ...


1

I would like this. It's a 1-line add to the MathJax configuration script, and it has numerous advantages. I see no reason why you would ever want to not number an equation: Maybe you're not referring to it later in your answer, but someone else might want to be able to say: "In Eq. 4 of this SE answer..." rather than having to say: "In the ...


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