Difference in size of MathJax with LaTeX in \scriptstyle\underbrace{X}

[hbghlyj]

Issue Summary

In LaTeX \underbrace and \overbrace seem to reset the style of argument to display-style. (cf. KaTeX/KaTeX#764)

Steps to Reproduce:

${\textstyle\prod}  {\displaystyle\prod}  \underbrace{\prod}$

In LaTeX

Technical details:

• MathJax Version: 3.2

[hbghlyj]

Similar:

$X\scriptstyle\begin{matrix}X\end{matrix}$

LaTeX:

MathJax:

[dpvc]

OK, it looks like under- and overbrace are outliers among the under- and over- macros, as they do seem to reset the style to text-style. I will look into fixing that.

Similarly, the matrix and array environments do seem to reset to text-style as well.

[dpvc]

I have made a pull request for v4 that resolves these issues.

[dpvc]

The PR I made does set display-style for the under and over braces.