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I had not realized at had to write out the word "latex".

That's certainly not how LaTeX usually works.

According to the support page that linked timethief

Using LaTeXTo include LaTeX code in your post, use the following:

`$latex your-latex-code-here$`

So, for example,

`$latex i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$`

]]>produces....

Try with this:

`$latex \int_0^1 \dfrac{dx}x\ne 0$`

I used it and it works perfectly.

Screenshot: https://cloudup.com/c-_vBU7Hnzw

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The LaTeX code is not getting rendered.

]]>WordPress.COM and WordPress.ORG are completely separate and have different logins, features, run different versions of some themes with the same names, and have separate support forums. http://en.support.wordpress.com/com-vs-org/

If you don't have a username account at WordPress.ORG click http://wordpress.org/support/ and register one on the top right hand corner of the page that opens, so you can post to the Theme support forums there.

Resetting your WordPress.ORG password http://codex.wordpress.org/Resetting_Your_Password

WordPress.org support docs are at https://codex.wordpress.org/Main_Page

]]>I'm sorry to read these instructions do not work for you http://en.support.wordpress.com/latex/

After you (1) confirm that your are running a browser and version of it found at http://browsehappy.com and (2) that you have both JavaScript and third party cookies enabled on your browser, please post again and explain exactly step by step what happens when you use the instructions.

]]>I'd like to use a lot of math in my blog using LaTeX. I noticed that the only option in wordpress.com is the $latex ... option. This is very weak and sometimes annoying. I'd like to suggest to wordpress.com to include a more powerful plugin such as WP QuickLatex or similar plugins that let us use the full power of LaTeX.

Thanks!

]]>I believe that LaTex support is enabled both for free and premium accounts.

Here can you find everything about LaTex:

]]>However, if you are trying to parse something like (double $ sign) -

$latex \frac{10}{100} \times $100 = $10$

this would not get parsed in WP as the have only limited flexibility with Latex typesetting.

]]>One option is to display the Latex code by itself, without the WordPress.com code around it:

\frac{ABC}{CDEF}

You can display that as preformatted text to make it stand out, if you'd like: http://en.support.wordpress.com/advanced-html/#preformatted-text

Another option is to use a non-breaking space between $latex and your Latex code. This page has more details about non-breaking spaces and how to enter them: http://en.wikipedia.org/wiki/Non-breaking_space

]]>Anthony question you might be able to help me. How to insert a code snippet into the wordpress.com blog?

In this forum, we can use the "code-/code" tag to insert code snippet, like this:

`$latex \frac{ABC}{CDEF}$`

The latex code in the code snippet will not be parsed. and the contents shown in different background color. That is what effect I want in the WordPress.com blog. I tried it in the WordPress.com blog by using the "Text" editor:

```
<br />
$latex \frac{ABC}{CDEF}$<br />
```

It does not work at all.

What is the best way to snippet into the wordpress.com blog?

]]>Thanks very much for your help. Good to know that WordPress latex does not take extra spaces!

]]>1. Why the Latex code cares about extra spaces. Latex syntax usually ignores all the extra spaces.

That is part of the WordPress.com Latex feature, not the Latex syntax itself. The code has to follow this format, with one space between $latex and your Latex code:

$latex your-latex-code-here$

2. How do you find the invisible non-breaking space? Which editor tool do you use?

I looked at the source code of your test post and saw that the second example used a non-breaking space instead of a regular space. If you're ever unsure about whether there's a non-breaking space, you can delete the space after $latex and insert a regular space with your spacebar to fix it.

Please let me know if you have any other questions about that. :)

]]>1. Why the Latex code cares about extra spaces. Latex syntax usually ignores all the extra spaces.

2. How do you find the invisible non-breaking space? Which editor tool do you use?

]]>`$latex h(\theta, X) = \frac{1}{1+ e^X}$`

If you remove the second space, the code will parse:

`$latex h(\theta, X) = \frac{1}{1+ e^X}$`

In the last example, it has a non-breaking space between $latex and the latex code. If you replace the non-breaking space with a regular space, it will work:

`$latex \frac{ABC}{CDEF}$`

Please let me know if I can do anything more to help with that.

]]>```
Test Math Formula:
Whey this can't parse: $latex h(\theta, X) = \frac{1}{1+ e^X}$
and $latex \frac{ABC}{CDEF}$
Try this: $latex \frac{ABC}{CDEF}$ again.
```

href="http://lukelushu.wordpress.com/2014/08/15/test-4/">Please look at this example.

]]>Please take a look at this support page:

http://en.support.wordpress.com/latex/#latex-error

As mentioned there, the "Formula does not parse" error comes up if your Latex syntax is broken. This is not an issue with the Latex support in WordPress.com but with the Latex syntax itself. The support staff here at WordPress.com is not able to support Latex syntax errors.

If you're running into trouble where the same code will work on one blog but not on another, please send me links to the code on both blogs so we can take a look at what's going on there.

]]>http://en.support.wordpress.com/latex/ ]]>