# MathJax does not display the formulas

**URL:** https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110
**Category:** 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:** 5
**Page:** 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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<div class="post-metadata">

### Author: ![jomaxro](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jomaxro/32/126216_2.png) [@jomaxro](https://meta.discourse.org/u/jomaxro)
#### Post date: [March 8, 2019, 7:10pm UTC](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110/2 "2019-03-08T19:10:53Z")

</div>

Works for me on [try.discourse.org](http://try.discourse.org) with both the default locale and user locale set to hebrew.

 ![image](https://global.discourse-cdn.com/meta/original/3X/5/9/597085cb316c726853c79f6c8a2c4eb7ab99a4a3.png)

 ![image](https://global.discourse-cdn.com/meta/original/3X/9/0/909c4dacd9babeb0c283f1ce0ebd3830a26169f7.png)

Are you running other plugins or site customizations?

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<div class="post-metadata">

### Author: ![simon](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/simon/32/339122_2.png) [@simon](https://meta.discourse.org/u/simon)
#### Post date: [March 8, 2019, 7:40pm UTC](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110/3 "2019-03-08T19:40:45Z")

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> [@verilog15](#):
>
> The formula I tried:
> 
> ```plaintext
> $$\frac{a}{b} \cdot 5 = 5a\cdot b^{-1}$$
> 
> ```

For inline rendering, you need to wrap the formula in single `$` characters.

This is working for me on my local site, with the Hebrew locale:

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

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<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, 7:56pm UTC](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110/4 "2019-03-08T19:56:20Z")

</div>

I installed the ad plugin but didn’t use it yet. No other plugins or customizations. Any other thoughts about what could be the issue?

Settings of the plugin:

 ![image](https://global.discourse-cdn.com/meta/original/3X/a/3/a399d131acaa07334a1131329ca1ae679841e5f5.png)

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<div class="post-metadata">

### Author: ![system](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/system/32/443519_2.png) [@system](https://meta.discourse.org/u/system)
#### Post date: [April 21, 2022, 12:46pm UTC](https://meta.discourse.org/t/mathjax-does-not-display-the-formulas/111110/5 "2022-04-21T12:46:52Z")

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