Not sure if it's changed now or not. Haven't seen David post anything since quite a while, so I think he might have left Brilliant and new challenge masters might have been added in. Arron is still active but not as much as Calvin. You might as well just say that Calvin is the Challenge Master for mathematics since he's almost the only staff member who's almost always active on the site.

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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TopNewestHe is our beloved Calvin Lin!

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Oh. Makes sense.

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Just curious , are you really 89 years old?

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And others too.

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Wait , Is there someone other than you too? If so , please tell , I am curious :P

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There were originally three challenge masters : Calvin Lin and Arron Kau for mathematics and David Mattingly for physics.

Not sure if it's changed now or not. Haven't seen David post anything since quite a while, so I think he might have left Brilliant and new challenge masters might have been added in. Arron is still active but not as much as Calvin. You might as well just say that Calvin is the Challenge Master for mathematics since he's almost the only staff member who's almost always active on the site.

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k。

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