We have provided a simple way to view the Latex code which generates all the wonderful math equations that you see.

If you hover over an equation (place your mouse over it for a second), it appears in a box:

You can test this feature with the following line of LaTeX:

\[ e^{i \pi } + 1 = 0, \quad i \, \heartsuit \text{ Brilliant!} \]

Note: This does not apply to images of LaTeX that members uploaded to problems or solutions.

Update: The following functionality has been removed (explanation):

Additionally, if you click on the menu in the top right corner, and select "Toggle LaTeX", we will then display the latex code, instead of the actual equations. Selecting it again would display the equations.

This allows you to easily read see all of the latex on the page. Furthermore, you can select the text, copy, and paste it into your comment (and then edit it). This way, you can easily reference specific equations.

Refer to this video for an example.

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Easy Math Editor

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

## Comments

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TopNewest\[\Huge\color{#ff00b3}{♛}\;\;\;\color{#ff0000}{ ❤ }\;\;\;\color{#0000ff}{\mathbf{B}}\color{#ff7f00}{\mathbf{r}}\color{#ffff00}{\mathbf{i}}\color{#00ff00}{\mathbf{l}}\color{#00ffff}{\mathbf{l}}\color{#0000ff}{\mathbf{i}}\color{#8b00ff}{\mathbf{a}}\color{#ff0000}{\mathbf{n}}\color{#ff7f00}{\mathbf{t}}\color{color:#ffff00}{\mathbf{.}}\color{#00ff00}{\mathbf{o}}\color{#0081ff}{\mathbf{r}}\color{#ff69b4}{\mathbf{g}}\]

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I 100% agree... best math site in the world!

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Also Physics!

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How much time do you use to do this? I admire your determination. Seriously.

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"Toggle LaTeX" isn't an option anymore. Was this intentional?

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Hi @Blan Morrison – yes, it is intentional.

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I don’t mean to be intrusive, but would you mind explaining why that decision was made?

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Note that you can still see the LaTeX that was used to generate LaTeX on the screen by hovering over it.

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@Mohmmad Farhan – what browser are you using? It works for me on Chrome, Firefox, and Safari.

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@Silas Hundt, I am using Microsoft Edge

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\[ \quad i \, \heartsuit \text{ Brilliant!} \]

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\[\sqrt{-\heartsuit^2}\text{ Brilliant}\]

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\[\quad i \, \heartsuit \text{ Brilliant!} \] It worked! Thank you!

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What does this mean''hover over an equation''?

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Put your mouse cursor on the equation and you can see the \(\LaTeX\) form of the equation

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With your mouse!

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What if a user is on the Brilliant app?

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No support in the Brilliant app yet, sorry :/ You can work around this issue by opening the page in the mobile browser and using the Toggle LaTeX menu from there.

Sorry!

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Hope to see the feature added soon ,sir. @Silas Hundt

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Very nice. This is a great addition and is one of the many reasons why I love Brilliant. Along with that, it feels good to connect with those who have very similar interests to yours, especially at young ages.

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Thanks for the guide, Calvin Lin. With this guide, I can post my math problems and their solutions better.

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That's the idea :)

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\[e^{i\pi}+1=0\quad i\, \heartsuit\text{brilliant!}\]

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Thanks a lot! This has been really helpful!

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Update -- we added a new option in the • • • menu on problems:

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\( LaTeX \) is way, way awesome! \( \large{ { \color{red}{ADDICTIVE!}}} \)

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Yay! Looks great :)

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Can you make some keyboard shortcut to toggle latex?

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Unfortunately no, not at this moment. We will keep that in mind if a lot of people start using "Toggle Latex", and want a shortcut.

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Thank you for the quick response.

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I can't find the "Toggle LaTeX" command anymore. Is it still available? It's a real help to learn LaTeX!

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Ok. Don't bother to answer. I just read the post by Blan Morrison and the replies. The toggle LaTeX command was really helpful to me. I am a bit disappointed at the decision to remove it, though I understand you have your reasons.

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Yay, finally a feature like this! This will definitely help a lot of LaTeX newbies out there :D

EDIT: things like these still don't work yet apparently: \[\left\{\begin{array}{l}\text{Equation 1}\\\text{Equation 2}\end{array}\right.\]

EDIT2: Hm, the "toggle latex" option doesn't work. It toggles everything on the main feed, but once you click on a problem, it just shows the regular latex.

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Regarding the first edit: it doesn't work on comments that you just typed in. Once you refresh the page, the latex will be displayed.

This is a screenshot of what I get on your comment:

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Currently, you need to open the problem in it's own window for Toggle LaTeX to work (it doesn't work in modals).

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When I write a \[\LaTeX\] it become center alligned. What should I do? see this problem of mine https://brilliant.org/problems/stinky-hexagon/?group=aZuSp5iwOGP2&ref_id=595352

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as you can see in this comment also

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\(I\ \heartsuit\ Brilliant.\)\[I\ \heartsuit\ Brilliant.\]

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\(I\ \heartsuit\ \LaTeX\)

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Wowwwwwwwwww..

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Sir but how can i click on my avatar , if i click then the question disappears @Calvin Lin @Silas Hundt

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Update -- we added the toggle LaTeX feature to problems in modal view as well.

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See my comment below. You have to open the problem in a new window in other to use the Toggle Latex feature, sorry.

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Thank you for this \( \color\red{nice}~~\color\green{addition} .\)

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I have always been saying

Love Math, Love Brilliant!

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When I write a \(\LaTeX\) it become center alligned. What should I do? You can see this problem of mine https://brilliant.org/problems/stinky-hexagon/?group=aZuSp5iwOGP2&ref_id=595352 @Calvin Lin

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as you can see in this comment also

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Instead of using \( \backslash[ \quad \backslash] \), use \( \backslash( \quad \backslash) \) around your Latex code instead. The former forces the equation into a newline (as you realized), but the latter allows things to continue on in the paragraph.

I've edited your comment so you can take a look at it.

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Got it.

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Like it ...\(LATEX \)

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\( \LaTeX \) is a better command than \( LATEX \) or \( LaTeX \), if you ask me.

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Please tell me the code, I am a smartphone user.

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@Vee Zhi

It works thank you.Log in to reply

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LaTeX: \[e^{i\pi}+1=0,\quadi\,\heartsuit\text{Brilliant!}\]

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LaTeX:\[\quad i\,\heartsuit \text{Brilliant!}\]

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\(e^{i \pi} + 1 = 0 \) \( EULER'S_{IDENTITY}\)

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$10×9×1$

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10 \times 9

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\( 10\times9=90 \)

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FYI I've edited your comment so that you can see how to use the Latex backets of \( \backslash ( \quad \backslash) \) around your code.

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\(a_{i-1} \)

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