I use Ubuntu 24.04 and Chrome.
In the formula
:<math forcemathmode="native">\max_{|z| \le 1}( |P'(z)| ) \le n\cdot\max_{|z| \le 1}( |P(z)| )</math>
rendert with MathMl, the spacing before and after the | character is much too large.
Description
Description
Related Objects
Related Objects
- Mentioned In
- T271001: Transition to MathML rendering as default
Event Timeline
Comment Actions
A minimal example is <math>n=|C|</math>. There is too much space in the Firefox rendering after the first vertical bar. This can be fixed by wrapping the expression |C| inside a mrow element like https://temml.org/ does.
Comment Actions
and so does mathoid
Thanks for the minimal example. That helps a lot.
I tried that on temml.org. I see the following MathML output
<math display="block" class="tml-display"><mrow><mi>n</mi><mo>=</mo><mi>|</mi><mi>C</mi><mi>|</mi></mrow></math>
In production I see
<math xmlns="http://www.w3.org/1998/Math/MathML" class="mwe-math-element mwe-math-element-inline"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>n</mi><mo stretchy="false">=</mo><mo stretchy="false">|</mo><mi>C</mi><mo stretchy="false">|</mo></mstyle></mrow></math>
looking like
So I think it is either the stretchyness or the mi vs mo question. I would guess it should be mo.
For the reference LaTeXML generates mo
<math id="p1.1.m1.1" class="ltx_Math" alttext="n=|C|\@add@PDF@RDFa@triples\par" display="inline"><semantics id="p1.1.m1.1a"><mrow id="p1.1.m1.1.2" xref="p1.1.m1.1.2.cmml"><mi id="p1.1.m1.1.2.2" xref="p1.1.m1.1.2.2.cmml">n</mi><mo id="p1.1.m1.1.2.1" xref="p1.1.m1.1.2.1.cmml">=</mo><mrow id="p1.1.m1.1.2.3.2" xref="p1.1.m1.1.2.3.1.cmml"><mo stretchy="false" id="p1.1.m1.1.2.3.2.1" xref="p1.1.m1.1.2.3.1.1.cmml">|</mo><mi id="p1.1.m1.1.1" xref="p1.1.m1.1.1.cmml">C</mi><mo stretchy="false" id="p1.1.m1.1.2.3.2.2" xref="p1.1.m1.1.2.3.1.1.cmml">|</mo></mrow></mrow><annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"><apply id="p1.1.m1.1.2.cmml" xref="p1.1.m1.1.2"><eq id="p1.1.m1.1.2.1.cmml" xref="p1.1.m1.1.2.1"></eq><ci id="p1.1.m1.1.2.2.cmml" xref="p1.1.m1.1.2.2">𝑛</ci><apply id="p1.1.m1.1.2.3.1.cmml" xref="p1.1.m1.1.2.3.2"><abs id="p1.1.m1.1.2.3.1.1.cmml" xref="p1.1.m1.1.2.3.2.1"></abs><ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝐶</ci></apply></apply></annotation-xml><annotation encoding="application/x-tex" id="p1.1.m1.1c">n=|C|\@add@PDF@RDFa@triples\par</annotation><annotation encoding="application/x-llamapun" id="p1.1.m1.1d">italic_n = | italic_C |</annotation></semantics></math>
and so does mathoid
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block" alttext="n=|C|">
<semantics>
<mrow>
<mi>n</mi>
<mo>=</mo>
<mrow class="MJX-TeXAtom-ORD">
<mo stretchy="false">|</mo>
</mrow>
<mi>C</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo stretchy="false">|</mo>
</mrow>
</mrow>
<annotation encoding="application/x-tex">n=|C|</annotation>
</semantics>
</math>
Comment Actions
It seems adding the mrow (which temml does not do) solves the problem. See https://codepen.io/physikerwelt/pen/azvLemO
<math>
<mi>n</mi>
<mo>=</mo>
<mrow>
<mo>|</mo>
<mi>C</mi>
<mo>|</mo>
</mrow>
</math>The question is, how to infer from the grammar that an mrow should be used here. The parse tree of n=|C| is just a sequence of flat literals
./bin/texvcjs 'n=|C|' -c --info [[1,"n"],[1,"="],[1,"|"],[1,"C"],[1,"|"]]
Comment Actions
The goal is to render $n=|C|$ exactly as $n={|C|}$ (second example in the screenshot below)
./bin/texvcjs 'n={|C|}' --info -o tree -c
[[1,["n"]],[1,["="]],[13,[[1,["|"]],[1,["C"]],[1,["|"]]]]]