# Online Math Open

Hi Everyone,

I'm delighted to announce that registration is now open for the Fall 2013 Online Math Open! Thank you all for your patience.

For those of you that don't already know, the Online Math Open (OMO) is a team-based contest, where teams of up to four students are given over a week to solve 30 short-answer problems. The contest is completely free, and takes place over the Internet -- therefore, students may team up with anyone they like around the world.

This year's contest will take place from October 18 through October 29, 2013.

Starting this year, the contest itself will be hosted on internetolympiad.org. Team captains can register a team of up to four students there by clicking the link labeled "Register/Update Team". Note that, in particular, only the team captain needs to register on the website. For more information, please check the information page on our website.

We work extremely hard to ensure our questions are of the highest quality, so that even the easy problems will be interesting, non-routine, and not "just another contest problem". (You can see some of our previous problems, including discussion, in the contest section of AoPS .) We hope you enjoy this year's problems as well!

Best, The OMO Team

( This entire post is a quote from the OMO Team)

6 years, 3 months ago

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

• Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
• Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
• Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold
- bulleted- list
• bulleted
• list
1. numbered2. list
1. numbered
2. list
Note: you must add a full line of space before and after lists for them to show up correctly
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paragraph 1

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[example link](https://brilliant.org)example link
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    # I indented these lines
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# up as a code block.

print "hello world"
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# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears 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} $\boxed{123}$

Sort by:

Anyone want to Make a Team with Me?

- 6 years, 3 months ago

Yes,i want

- 6 years, 3 months ago

- 6 years, 3 months ago

Hi Gabriel, can we make a team

- 6 years, 3 months ago

Only has Two Jobs in My Team !

- 6 years, 3 months ago

can I pls??

- 6 years, 3 months ago

Hi all, I'm one of the problem writers for the OMO this year. Thanks to Akshaj K. for announcing it-if you have any questions, please ask.

- 6 years, 3 months ago

Hello,Michael can I know,at what age students in USA graduated?

- 6 years, 3 months ago

Students generally graduate when they are 18 or 17, although there are some who graduate early or late.

- 6 years, 3 months ago

Thanks,Michael.

- 6 years, 3 months ago

Hello all,

If anybody would like me to facilitate e-introductions between any of you, so you can coordinate OMO participation with people you only know via Brilliant, then let me know.

Instead of posting email addresses publicly here, just contact me at discussions@brilliant.org if you would like to contact someone. I will check with both parties, and then email you the contacts of people who want to be on a team with you.

Have fun!

Staff - 6 years, 3 months ago

Two questions that arise for me: 1) Is there an age-restriction on the participants? 2) How does the Team enforce the prohibition of graphing tools and such?

- 6 years, 3 months ago

There is an age-restriction. It says he mustn't graduate from high school

- 6 years, 3 months ago

Thank you! I missed that :)

- 6 years, 3 months ago

There is no way I think they can enforce the prohibition of graphic tools and such. I have graduated from school and won't be eligible for the competition. But I am participating just for fun. Would you like to team up with me, Sir?

- 6 years, 3 months ago

I can't predict how much time I will have, but I would like to participate for fun as well :) Let's team up :)

- 6 years, 3 months ago

Did you register a team yet?

I've had contact with the organisation and it should be no problem to participate off the record. Just add '(off-record)'in the team name.

I can ask a friend of mine to join in as well :)

- 6 years, 3 months ago

That's a good news. What should be the name of our team?

For now, I have registered with name 'ICE(off record)'; it can be changed anytime.

Sure, ask your friend to join as well. It would be nice.

- 6 years, 3 months ago

Is ICE short for something? It's as good as anything I can come up with :p.

Should you need to contact me, my email is listed on my profile page :)

- 6 years, 3 months ago

How to submit the answers..? How will be the interface..???

- 6 years, 3 months ago

- 6 years, 3 months ago

Four members are not a requirement; I believe there have been teams in the past with only one person. Obviously, however, he is at a clear disadvantage.

- 6 years, 3 months ago

Hi AkshajK! and anyone want to team with me?

- 6 years, 3 months ago

Hey there AK! Just wanted to know, are you a problem writer?

- 6 years, 3 months ago

No he is not.

- 6 years, 3 months ago

I'm reading questions from past competitions and I have to say, they are quite impressive. Really. I certainly will be signing up; thanks for introducing me to this Akshaj.

- 6 years, 3 months ago

Can you give the link from where you're reading the past questions? It would be easier to not have to go through the whole website searching for the past questions.

- 6 years, 3 months ago

there's a whole tab to past problems.

- 6 years, 3 months ago

darn AK you don't run this contest :P

anyways, I have a team with (Kevin C. (lucylai) and some other people. Hi ahan, willcui, and chao

- 6 years, 3 months ago

Wait, why are you saying hello to me? And check the spelling of my name.

- 6 years, 2 months ago

probably because he saw that you, bestwill, and chao posted here.

- 6 years, 2 months ago

Hey ;D

- 6 years, 3 months ago

AHA! sorry unrelated but i know you from AoPS. cool!

- 6 years, 3 months ago

Wait who are you?

- 6 years, 3 months ago

hey there's jeremylu.

- 6 years, 3 months ago

Wait who are you?

- 6 years, 3 months ago

I'm bestwillcui1.

- 6 years, 3 months ago

No really.

- 6 years, 3 months ago

I... don't... know... anymore.

- 6 years, 3 months ago

obviously he is bestwillcui1

- 6 years, 3 months ago

Yes.

- 6 years, 3 months ago

He is El_Ectric.

- 6 years, 2 months ago

Reminder: The Online Math Open starts at 7:00 PM EST on October 18th; Approximately 2.5 days from now. (it is currently 7:57 AM EST on the 16th)

- 6 years, 3 months ago

Is it necessary that there must be four members? Can we have a team of two persons?

- 6 years, 3 months ago

"up to four students"

Pretty self-explanatory? Basically, no, you don't need four students. I once participated alone.

- 6 years, 3 months ago

Ah well, my bad. Thank you Ivan! :)

- 6 years, 3 months ago

finally find you

- 6 years, 3 months ago

Eh?

- 6 years, 3 months ago

Can I join?

- 6 years, 3 months ago

Yeah...anyone can join.

- 6 years, 3 months ago

Thamks

- 6 years, 3 months ago

Can't I just view the problems without participating?

- 6 years, 3 months ago

You don't have to submit.

- 6 years, 3 months ago

Could someone tell me how the rules are implemented ?

- 6 years, 3 months ago

Hi Akshaj! (on a team with Pratik R. (bharatputra) and David W. (crastybow))

- 6 years, 3 months ago

can i join a team? who has free slots? thanks

- 6 years, 3 months ago

I have a question. What if the high school system is different from country to country for example, here in the philippines, I graduated high school last SY2012-2013, but the high school system is from 1st-4th year only.

- 6 years, 3 months ago

Hi everyone! I am from S-shaped Vietnam. Is there anyone would like to join me?

- 6 years, 3 months ago

Let us team up if you wish..

- 6 years, 3 months ago

Ok! Tell me your name at NIMO!

- 6 years, 3 months ago

NIMO? What is that?

- 6 years, 3 months ago

- 6 years, 3 months ago

this will be simultaneously fun and interesting.

- 6 years, 3 months ago

I didn't know this existed until I read this, I am creating a team with some of my classmates, thankyou for introducing this to me

- 6 years, 3 months ago

can we participate indivisually? what is the age restriction?

- 6 years, 3 months ago

Yes, you can participate individually (or have a team of 1 person) if you want to. Students must not have graduated from college.

- 6 years, 3 months ago

Who wants to team up with me?

- 6 years, 3 months ago

Interesting but i have my examinations to take care of.-SMOJ

- 6 years, 3 months ago

Do the team members, which we choose, also need to have their accounts on NIMO...?????

- 6 years, 3 months ago

Only the team leader needs to have an account.

- 6 years, 3 months ago

Let me see if I understood correctly: During the competition i can enter as many times as i want to the web page and see the problems? I mean, if I open problem number one, that doesn't means that i'm forced to answer it at that specific moment, right?

- 6 years, 3 months ago

You receive all problems at the beginning of the competition. You can submit any answers as many times as you want during the week, and your most recent submissions for each problem are graded at the end of the competition. No feedback about whether your answer is right will be provided until the submission period is over.

- 6 years, 3 months ago

sorry, but could you please specify the requirements for registering contest?

- 6 years, 3 months ago

Registration information and rules are here: http://internetolympiad.org/pages/14-omo_info Teams of up to 4 students should register under the account of one team captain.

- 6 years, 3 months ago