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nLab > nLab Technical Matters: spacing problem

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  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJul 7th 2016
    • (edited Jul 7th 2016)

    At some point within the last two hours, the following behaviour showed up:

    the rendering of

      $$
    \begin{aligned}
      \underset{A(1)}{\times} A
      & \simeq
      A  
    \end{aligned}
    \,.
  $$

    has no whitespace after the second “AA”

    ×A(1)A ≃A. \begin{aligned} \underset{A(1)}{\times} A & \simeq A \end{aligned} \,.

    Somehow it’s the parenthesis in the subscript that causes this, for without it

      $$
    \begin{aligned}
      \underset{A}{\times} A
      & \simeq
      A  
    \end{aligned}
    \,.
  $$

    then

    ×AA ≃A. \begin{aligned} \underset{A}{\times} A & \simeq A \end{aligned} \,.
    • CommentRowNumber2.
    • CommentAuthorMike Shulman
    • CommentTimeJul 8th 2016

    Bizarre!

    • CommentRowNumber3.
    • CommentAuthorTobyBartels
    • CommentTimeJul 8th 2016

    It seems to be the width of the underset expression;

    ×A1A ≃A. \begin{aligned} \underset{A1}{\times} A & \simeq A \end{aligned} \,.

    is fine, but

    ×A11A ≃A. \begin{aligned} \underset{A11}{\times} A & \simeq A \end{aligned} \,.

    is bad.

    • CommentRowNumber4.
    • CommentAuthorTobyBartels
    • CommentTimeJul 8th 2016

    The MathML produced by my two examples is identical (except for the extra ‘11’), so this seems to be something about how Firefox renders MathML. (Are we all looking at this with Firefox?)

    • CommentRowNumber5.
    • CommentAuthorMike Shulman
    • CommentTimeJul 9th 2016

    I am.

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeJul 9th 2016

    Ah, thanks for sorting this out, Toby.

    Hm, I feel sure that this problem didn’t occur before yesterday afternoon CET. That’s when I noticed that on some nnLab page which I have been working on for days suddenly the spacing came out wrong. Strange.

    Anyway, what could we do? If it is a problem with Firefox, what would be a site for reporting this bug?

    • CommentRowNumber7.
    • CommentAuthorTobyBartels
    • CommentTimeAug 27th 2016

1 to 7 of 7

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