IChOO Contest 2

We have decided the date for the next IChOO Contest! We have decided to release the contest PDF on March 30 at 9 AM EST. Again, you will have two weeks to submit but the test should not take longer than 1.5 to 2 hours. We trust you will not cheat by receiving help, posting on message boards, etc. IChOO Contest 2 will be of the same format as Contest 1. There will be one round of 15 multiple choice questions and 3 free-response questions, with a maximum score of 75.

This has been updated on our website!

Note by Ahaan Rungta
6 years, 12 months ago

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1 vote

  Easy Math Editor

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.
  • Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

  • bulleted
  • list

1. numbered
2. list

  1. numbered
  2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
    # 4 spaces, and now they show
    # up as a code block.

    print "hello world"
# I indented these lines
# 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 2×3 2 \times 3
2^{34} 234 2^{34}
a_{i-1} ai1 a_{i-1}
\frac{2}{3} 23 \frac{2}{3}
\sqrt{2} 2 \sqrt{2}
\sum_{i=1}^3 i=13 \sum_{i=1}^3
\sin \theta sinθ \sin \theta
\boxed{123} 123 \boxed{123}


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Welcome back to Brilliant! Been a while since you've been very active. I'll be sure to check this out! :D

Finn Hulse - 6 years, 12 months ago

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Yeah Thanks, i look forward to it.

Simon Mos - 6 years, 12 months ago

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Yes same here.

Kahsay Merkeb - 6 years, 12 months ago

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I have heard about the IChOO for the first time, please tell me the details about how to register and the difficulty level. Also, is there a IMaOO of maths??

Satvik Golechha - 6 years, 11 months ago

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We are an organization called the Online Science Olympiads for Physics and Chemistry. You should register by going to Contests -> Register. Please make sure you are registering for the right contest!

For Math, you should visit OMO and NIMO or Proofathon.

Ahaan Rungta - 6 years, 11 months ago

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so interesting

Alvin Reyes - 6 years, 11 months ago

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