# MathJax does not display the formulas

**URL:** <https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110>\
**Category:** Product Support\
**Created:** [March 8, 2019, 7:02pm UTC](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110 "2019-03-08T19:02:49Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![verilog15](https://avatars.discourse-cdn.com/v4/letter/v/9f8e36/32.png) [@verilog15](https://meta.discourse.org/u/verilog15)\
**Post date:** [March 8, 2019, 7:02pm UTC](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110/1 "2019-03-08T19:02:49Z")

</div>

I installed the MathJax plugin on my localhost Discourse community. I enabled it in the settings:

![image](https://global.discourse-cdn.com/meta/original/3X/f/5/f5ab3425eae649f9bab906ed9d48964d0efc68a1.png)

But for some reason it does not display the formulas, not in the topics and not in the previous:

 ![image](https://global.discourse-cdn.com/meta/original/3X/c/b/cb5488484354c38c107a20d66074ab310156118e.png)

The formula I tried:

```plaintext
$$\frac{a}{b} \cdot 5 = 5a\cdot b^{-1}$$

```

Discourse is set to be in Hebrew (RTL). Maybe that is the reason?  
How to solve it?

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_[View the full topic](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110)._