Some LaTeX symbols not rendering about react-native-math-view

[ShaMan123]

Thanks @pkra for the clear and accurate comment.
Rendering math is tough, lots of workarounds are used getting this lib working.

[hypnocill]

Thank you very much for the answers!

[ShaMan123]

Hi, you should define macros so mathjax knows what to do.
Also it is likely you need to escape backslashes (\\).
Refer to this commit: 6556598

[ShaMan123]

for example

<MathView
   config={{ macros: {
                'placeholder': ''
            }}
/>

[hypnocill]

The macros work but they are virtually the same as 'find and replace'. And the issue remains - we can't be sure we've caught all unknown tags that come from the https://cortexjs.io/mathlive/demo/ library.
We searched for 'exponentialE' in the mathjax's react native lib source code and it seems to be present in a few places yet it doesn't render.
Our issue is that with macros we can't be sure that we'll render all tags that could possibly come from cortexjs and it's very important for us to be sure that we can render the latex properly.

[pkra]

Random bystander here. Both mathlive and mathjax are completely separate systems, even if both use TeX-like syntax (and TeX itself is different still). If you use one tool for authoring and another for rendering, you're bound to run into such issues.

The relevant docs are http://docs.mathjax.org/en/latest/input/tex/macros/index.html and https://cortexjs.io/mathlive/reference/commands/. You can diff them and create all missing macros -- or do the community a favor and create a proper MathJax extension.