I have a math book that I'm going through and want to replace math expressions that are rendered in image or SVG files with MathML equivalents.
I found this:
https://manual.calibre-ebook.com/typesetting_math.html
However, while the ePub file downloaded from there previews and displays well in calibre viewer and editor preview, actual ePub software such as Apple Books or Thorium do not render it.
Conversely, when I create ePub with Sigil with a MathML example (attached) it does not render correctly in calibre viewer or editor previewer, but does so in Apple Books and Thorium reader.
So I do not understand the utility of using MathJax if only calibre reader / previewer handles it. It looks like I'll have to do this editing with Sigil and previewing there and with ePub apps like Thorium reader.
Am I missing something here?
I am guessing that adding the <script> stuff for MathJax would let me preview in calibre as well? and other reading apps would ignore it?