Right-to-Left Equation Support in MathJax

[Amine Marref]

Hello Everyone,

I have a twofold question. I am trying to use MathJax to render mathematical text in both English and Arabic (not in a mixed fashion).

I started playing with MathJax version 3 for doing the English-math rendering and I cannot complain about it. Then when I wanted to do the Arabic part, I kind of hit a wall.

My first question: How do I render the equations right-to-left in MathJax version 3?

I found a promising MathJax Arabic extension that should do the job correctly for me, but it is intended for version 2.5+ of MathJax. Now, I tried downgrading MathJax to this version as it might suit my needs amply; but while rendering the normal English equations, I get the error "Uncaught TypeError: MathJax.typeset is not a function". I use MathJax.typeset() after I dynamically insert MathJax-renderable equations in the app.

My second question: What is the equivalent of MathJax.typeset() in the 2.5+ versions of MathJax? Or equivalently, how are dynamically-inserted equations rendered?

Many thanks,

Amine.

[Davide Cervone]

I have a twofold question. I am trying to use MathJax to render mathematical text in both English and Arabic (not in a mixed fashion).

I started playing with MathJax version 3 for doing the English-math rendering and I cannot complain about it. Then when I wanted to do the Arabic part, I kind of hit a wall.

My first question: How do I render the equations right-to-left in MathJax version 3?

As you found out, the Arabic extension has not been ported to MathJax v3 yet (it was a third-party extension, and the author has not had time to work on it).  There is currently no RTL support in v3.

I found a promising MathJax Arabic extension that should do the job correctly for me, but it is intended for version 2.5+ of MathJax. Now, I tried downgrading MathJax to this version as it might suit my needs amply; but while rendering the normal English equations, I get the error "Uncaught TypeError: MathJax.typeset is not a function". I use MathJax.typeset() after I dynamically insert MathJax-renderable equations in the app.

My second question: What is the equivalent of MathJax.typeset() in the 2.5+ versions of MathJax? Or equivalently, how are dynamically-inserted equations rendered?

Yes, the API changed substantially from version 2 to version 3.  The documentation for v2 is at

http://docs.mathjax.org/en/v2.7-latest/

and the function you are looking for is MathJax.Hub.Typeset().  But see 

http://docs.mathjax.org/en/v2.7-latest/advanced/typeset.html

for details about how to use it.

Davide

[Amine Marref]

Cheers, 

I was able to typeset my equations in MathJax 2.7.7 by substituting calls to MathJax.typeset(); by calls to MathJax.Hub.Queue(["Typeset",MathJax.Hub]);

[Davide Cervone]

Glad you got it to work.  Note that the latest version of v2 is 2.7.9.

Davide

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