# One formula in two different paragraphs

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### huudien...@gmail.com

Mar 29, 2013, 1:08:52 PM3/29/13
Hello everybody,

I am using CKEditor in my forum, and it is configured in such a way that an Enter hit will insert a new paragraph. For example, if I type
\begin{array}{cc}
a & b \\
c & d
\end{array}

I will obtain

<p> \begin{array}{cc} </p>
<p> a & b \\ </p>
<p> c & d </p>
<p> \end{array} </p>

so MathJax cannot recognize it.

Can anybody please tell me how to make MathJax be able to read the above formula?

I can re-configure the editor to make Enter hits insert <br/> instead of a new paragraph, but this will lead to a malfunction of other features.

### Dayal Purohit

Mar 29, 2013, 1:20:37 PM3/29/13
You can include the html elements <p>, </p> inside Tex string.

### Peter Krautzberger

Mar 29, 2013, 1:39:41 PM3/29/13
MathJax will not parse beyond HTML tags, I'm afraid. Perhaps CKeditor has a way to avoid automatic paragraph breaks via a plugin, but I don't know it that well.

Peter.

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### J.R.St...@physics.org

Mar 29, 2013, 1:49:51 PM3/29/13

On Friday, March 29, 2013 5:39:41 PM UTC, Peter Krautzberger wrote:
MathJax will not parse beyond HTML tags, I'm afraid. Perhaps CKeditor has a way to avoid automatic paragraph breaks via a plugin, but I don't know it that well.

JavaScript executed onload but before MathJax could perhaps be used to remove the paragraph markings.
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### Dayal Purohit

Mar 29, 2013, 7:49:13 PM3/29/13
I meant you can not include HTML elements in Tex String.

### huudien...@gmail.com

Apr 1, 2013, 2:35:03 PM4/1/13
So to conclude: the answer is NO, unfortunately.

Thank you very much for your replies.

### Davide P. Cervone

Apr 7, 2013, 7:40:01 PM4/7/13
Note that MathJax WILL allow <br> tags within the mathematics, which it will treat as a newline. That is the ONLY tag that MathJax will process.  So if you can get your editor to produce <br> rather than paragraphs, that should work.

Davide

On Apr 1, 2013, at 2:35 PM, <huudien...@gmail.com> <huudien...@gmail.com> wrote:

So to conclude: the answer is NO, unfortunately.

Thank you very much for your replies.

### huudien...@gmail.com

Apr 8, 2013, 4:27:50 AM4/8/13
Thanks, Davide.

Yes, I know that MathJax allows <br> tags within the formulas. I mentioned in the first post that:

I can re-configure the editor to make Enter hits insert <br/> instead of a new paragraph, but this will lead to a malfunction of other features.

Such a re-configuration will lead to a malfunction of the new quote system of the new 3.4 IP Board (that should not be detailed here because this is not an IPB forum :P).

For those interested, by default, CKEditor has the following enter mode configuration:
- Enter will insert a new paragraph (<p> </p>)
- Shift + Enter will insert a new line (<br/>)

To change this, it suffices to modify the enterMode and shiftEnterMode entities in the configuration file as follows

config.enterMode = CKEDITOR.ENTER_BR;
config.shiftEnterMode = CKEDITOR.ENTER_P;

Regards.