## Excel in math and science

### Master concepts by solving fun, challenging problems.

## It's hard to learn from lectures and videos

### Learn more effectively through short, conceptual quizzes.

## Our wiki is made for math and science

###
Master advanced concepts through explanations,

examples, and problems from the community.

## Used and loved by 4 million people

###
Learn from a vibrant community of students and enthusiasts,

including olympiad champions, researchers, and professionals.

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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TopNewestI'm glad to hear!

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Yes sir, Its a fabulous site. Just wanted to complain that nowadays the no. of problems posted everyday are very less. What is the reason??

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There are actually much more problems. We chose to restrict the problems that come into your main page to just the really really popular questions, to make the experience better for those who come back less often.

You can view all the problems with a tag, by switching from "Popular Posts" to "All Posts". Also, you can view the Explore page, which is accessible by clicking on the gear in the top right and selecting "explore".

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