Interesting sites for challenging math

Following are some URL for some good sites of math problems...

http://web.mit.edu/hmmt/www/
http://www.artofproblemsolving.com/
http://mathschallenge.net/
projecteuler.net/ (Algorithm Based Problems)

Do not forget to mention brilliant.org - it's now one of them...

#LearningResources #CoolLinks #Math

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`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

projecteuler is not math I doubt one can solve more than 10/400 problems with pure math

Harshit Kapur - 8 years, 5 months ago

No it isn't pure math, but I need to get better at my algorithm based problem solving.

Kristin Dover - 8 years, 5 months ago

You can also access the HMMT problems at the easier-to-remember hmmt.org :)

Eli Ross - 8 years, 5 months ago

Thanks for sharing. I had never heard of projecteuler.

Kristin Dover - 8 years, 5 months ago

AOPS is fun

Tim Ye - 8 years, 5 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$