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Part ONE

Note by Brilliant Mathematics
1 week, 6 days ago

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  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}

Comments

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Lately, I've noticed that when I am writing Latex and I've made a small mistake and I try to preview it, the whole thing goes haywire. Sometimes removing the offending line corrects it, but sometimes not. Here's an example of what it looks like when this happens (I've cut most of it out). I was in the middle of writing a note at the time, and I can't get it to display anything sensible. And I can't get back to any decent state. It seems one can potentially lose a huge amount of work due to this. The note I was posting was an image and a bunch of Latex.

Suppose the particle is projected in the <span class="katex"><span class="katex-mathml"><math><semantics><mrow><mo>+</mo><mi>x</mi></mrow><annotation encoding="application/x-tex"> +x </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.66666em;vertical-align:-0.08333em;"></span><span class="mord">+</span><span class="mord mathdefault">x</span></span></span></span> direction, and that the magnetic flux density is in the <span class="katex"><span class="katex-mathml"><math><semantics><mrow><mo>+</mo><mi>z</mi></mrow><annotation encoding="application/x-tex"> + z </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.66666em;vertical-align:-0.08333em;"></span><span class="mord">+</span><span class="mord mathdefault" style="margin-right:0.04398em;">z</span></span></span></span> direction. The Newton's 2nd Law equations are:

Steven Chase - 1 week, 6 days ago

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happened to me as well. it dumps a load of html i think for some reason.

James Watson - 1 week, 6 days ago

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Hi James and Steven, this was a bug that was recently resolved. Please notify us if you are able to reproduce this bug again.

Brilliant Mathematics Staff - 1 week, 5 days ago

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@Brilliant Mathematics Sir, I encountered this bug recently yesterday while posting a solution. :)@Brilliant Mathematics

Aryan Sanghi - 1 week, 2 days ago

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@Aryan Sanghi To help us get to the bottom of this and fix it for you – please send us a screenshot or screen video of the bug happening from your device to support@brilliant.org.

Brilliant Mathematics Staff - 1 week, 1 day ago

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@Brilliant Mathematics sir, I wanted to ask about how to post questions having more than one correct answers. Whenever I try selecting more than one options as answer while posting question, the other option gets unmarked. Please help me. :)

Questions like above one having more than one correct answers. :)

Aryan Sanghi - 1 week, 2 days ago

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You're right, where'd you find the problem? Please share the link @Aryan Sanghi

Percy Jackson - 1 week, 2 days ago

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Here it is link to problem. :)

Aryan Sanghi - 1 week, 2 days ago

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@Aryan Sanghi Thank you :)

Percy Jackson - 1 week, 1 day ago

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@Brilliant Mathematics - What happens after the 100-day challenge? Andrew Hayes said that we'll receive an e-mail about it, but no mails so far.

Percy Jackson - 1 week, 5 days ago

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i was gonna say the same thing

Nathan Soliman - 1 week, 5 days ago

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Hi Percy and Nathan, I currently do not have the answer to this question. I'll keep you posted whenever I have news.

Brilliant Mathematics Staff - 1 week, 5 days ago

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@Brilliant Mathematics Okay, makes sense, since your the Math moderator I guess. I'll ask Andrew Hayes later. Thanks anyway.

Percy Jackson - 1 week, 5 days ago

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@Brilliant Mathematics Hii. Sir there was a feature of showing, how many people have solved the problem till now .
But nowadays that feature is not working.
I will be happy to see that feature working again . Can you add that feature again? , it is a request.

Lil Doug - 1 week, 4 days ago

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Hi Lil Doug. This is a known issue, I've already forwarded this request to the engineers.

Brilliant Mathematics Staff - 1 week, 4 days ago

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@Brilliant Mathematics Sir whenever I post a note and lets suppose if I have to mention someone
So their link does not come as you can see here, here I was mentionting Karan Chatrath sir, but his link was not displaying.
Can you please fix this problem

Lil Doug - 1 week, 4 days ago

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I agree that our tagging system isn't perfect. Here's a temporary solution:

Copy this string of text whenever you want to tag him:

1
@ mention [353279:Karan Chatrath]

Remove the spaces between @, mention and the [ symbol.

Brilliant Mathematics Staff - 1 week, 4 days ago

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@Brilliant Mathematics Thanks.
How to know that six number code of different people
Can you give me the code of Steven Chase and Krishna Karthik.
Thanks In advance.

Lil Doug - 1 week, 4 days ago

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@Lil Doug We currently only allow staff to view their ID number.

Steven Chase's ID is 1247521.

Krishna Karthik's ID is 6497226.

Brilliant Mathematics Staff - 1 week, 4 days ago

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@Brilliant Mathematics @Brilliant Mathematics by the way what does ID number mean?
Does it mean that this member is the nth number of Brilliant community.
Is it counting of members?

Lil Doug - 1 week, 4 days ago

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@Lil Doug Yes, something like that.

Brilliant Mathematics Staff - 1 week, 4 days ago

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@Brilliant Mathematics @Brilliant Mathematics Thanks..
What should I do if I want to become staff?

Lil Doug - 1 week, 4 days ago

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@Lil Doug Please review this page then.

Brilliant Mathematics Staff - 1 week, 4 days ago

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@Brilliant Mathematics I think Gooblesoft is a rather funnily mean pun on Google and Microsoft. Is it @Brilliant Mathematics?

Percy Jackson - 1 week, 3 days ago

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@Brilliant Mathematics So, is my new method of mentioning people actually not allowed?

It in fact uses ID numbers, that is why...

@Brilliant Mathematics

Frisk Dreemurr - 1 week, 3 days ago

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@Frisk Dreemurr Must be a bug that the engineers are trying to fix, or maybe its an actual feature.

Percy Jackson - 1 week, 3 days ago

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@Percy Jackson Hi Percy, please refrain from spamming this discussion note. Thanks.

Brilliant Mathematics Staff - 1 week, 3 days ago

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@Brilliant Mathematics Ok, its edited to sound more sophisticated. your welcome

Percy Jackson - 1 week, 2 days ago

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@Frisk Dreemurr Well, now everyone knows it, so almost everyone on Brilliant follows illegal practices. On the other hand, my ID is in my bio, so mentioning me using the ID number isn't illegal @Frisk Dreemurr lol

Percy Jackson - 1 week, 3 days ago

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@Brilliant Mathematics Yeah it really works.
Thanks I have mentioned below.

Lil Doug - 1 week, 4 days ago

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@Lil Doug - If you want the ID of any member, got to a note or problem where the member has already been @mentioned or a note or problem that the member created. Now mention them there and type their name after the mention, so for you it'll be @Lil Doug mention[10587613:Lil Doug]. When you post this, you will be able to see their ID. Your ID for instance is mention[10587613:Lil Doug]. See @Frisk Dreemurr's note on the same topic for more clarity.

Percy Jackson - 1 week, 3 days ago

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go here

https://brilliant.org/discussions/thread/hard-reference-to-mention-people-who-have/?ref_id=1596672

Nathan Soliman - 1 week, 2 days ago

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https://brilliant.org/discussions/thread/hard-reference-to-mention-people-who-have/?ref_id=1596672

Nathan Soliman - 1 week, 1 day ago

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@Brilliant Mathematics Suppose this is the statistics of a particular problem

Is there any type of feature that can be added to see the profiles of who has viewed the problem till now, who has attempted the problem till now ?

Lil Doug - 1 week, 4 days ago

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We currently do not have that feature.

Brilliant Mathematics Staff - 1 week, 4 days ago

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@Brilliant Mathematics - How do we add the reference of the relevant wiki to a problem? I mean the "View Wiki" button that appears beside "Discuss Solutions" button.

Percy Jackson - 1 week, 3 days ago

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Hi Percy, currently, only the staff has the ability to add wiki links.

Brilliant Mathematics Staff - 1 week, 3 days ago

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So on what basis do you guys add the link? Do you do it for popular problems that have a related wiki, or is there some kind of selection process which is classified, in which case you won't reply? @Brilliant Mathematics

Percy Jackson - 1 week, 3 days ago

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@Percy Jackson It's hard to answer your question. We used to do this for numerous problems but we stopped for various reasons, we might re-implement this feature in the future.

Brilliant Mathematics Staff - 1 week, 3 days ago

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@Brilliant Mathematics ok thanks for letting me know

Percy Jackson - 1 week, 3 days ago

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Also, can I just refer to you with something shorter than mention[1217290:Brilliant Mathematics], cause typing out mention[1217290:Brilliant Mathematics] makes my fingers wail in agony.

Percy Jackson - 1 week, 3 days ago

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@Percy Jackson There isn't a need to tag me all the time.

Brilliant Mathematics Staff - 1 week, 3 days ago

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@Brilliant Mathematics Ah yes, that would be easier, thanks.

Percy Jackson - 1 week, 3 days ago

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@Percy Jackson ...

Nathan Soliman - 1 week, 3 days ago

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@Percy Jackson Hey bro can I get ID number of Foolish Learner.

Lil Doug - 1 week, 2 days ago

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you mean

@Foolish Learner ?

Nathan Soliman - 1 week, 2 days ago

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Yeah, am not Percy, but still tho... :)

@Foolish Learner

Frisk Dreemurr - 1 week, 2 days ago

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mention[6594224:mention[6594224:Foolish Learner]]\text{mention[6594224:mention[6594224:Foolish Learner]]}

Frisk Dreemurr - 1 week, 2 days ago

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@Frisk Dreemurr @Frisk Dreemurr Thank you so much bro.

Lil Doug - 1 week, 2 days ago

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@Lil Doug i thought it was a she

Nathan Soliman - 1 week, 2 days ago

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@Nathan Soliman It is a she

Frisk Dreemurr - 1 week, 2 days ago

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@Frisk Dreemurr or a he

Nathan Soliman - 1 week, 2 days ago

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@Nathan Soliman TeeHee

Nathan Soliman - 1 week, 2 days ago

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@Lil Doug K, if you want, you can check how to get a number for any ID profile in my profile :)

Frisk Dreemurr - 1 week, 2 days ago

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@Frisk Dreemurr yes at

https://brilliant.org/discussions/thread/hard-reference-to-mention-people-who-have/?ref_id=1596672

Nathan Soliman - 1 week, 2 days ago

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@Lil Doug

Frisk Dreemurr - 1 week, 2 days ago

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@Frisk Dreemurr why did percy say 54 questions later

Nathan Soliman - 1 week, 2 days ago

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@Nathan Soliman I predicted that a question of Calcdoku would come 54 problems later, that's why :)

Frisk Dreemurr - 1 week, 2 days ago

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@Frisk Dreemurr @Frisk Dreemurr In which note, I will get all ID numbers?

Lil Doug - 1 week, 2 days ago

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@Lil Doug https://brilliant.org/discussions/thread/hard-reference-to-mention-people-who-have/?ref_id=1596672

Nathan Soliman - 1 week, 2 days ago

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@Lil Doug Wait a sec, I'll mention you there :)

Frisk Dreemurr - 1 week, 2 days ago

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@Brilliant Mathematics can you please provide me the ID number of Mark Hennings.

Lil Doug - 1 week, 2 days ago

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Here ya go - Mark Hennings @Lil Doug

Is this the Mark Hennings you needed?

Percy Jackson - 1 week, 1 day ago

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@Percy Jackson I got it bro using that same trick of that discussion

Lil Doug - 1 week, 1 day ago

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@Lil Doug Oh, great!

Percy Jackson - 1 week, 1 day ago

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@Percy Jackson @Percy Jackson see my note. I have mentioned successfully.
That trick really works. You are awesome. Thanks for much such a great technique.

Lil Doug - 1 week, 1 day ago

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@Lil Doug Its actually @Frisk Dreemurr's technique, so she's the one you should thank :)

Percy Jackson - 1 week, 1 day ago

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@Percy Jackson :) Gee, thnx @Percy Jackson

Frisk Dreemurr - 1 week ago

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@Frisk Dreemurr Gee? Really? Is that even legal?

Percy Jackson - 1 week ago

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@Brilliant Mathematics can Brilliant make a dark mode in website?
It will be very helpful.
Thanks in advance

Lil Doug - 1 week, 1 day ago

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Thanks. I'll forward this suggestion to the engineers.

Brilliant Mathematics Staff - 1 week, 1 day ago

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@Brilliant Mathematics - I am able to access a previous daily problem from the archives without a premium membership. I cannot access it from the archives, but when I go there using a link, I can access it, please clarify whether that is accessible or this is a bug. Thanks :)

Here's the link to the problem - How Many Paths?

Percy Jackson - 1 week ago

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Thanks. It's been fixed.

Brilliant Mathematics Staff - 1 week ago

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Great :)

Percy Jackson - 1 week ago

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@Nathan Soliman.Please give me the mentioning id of grandroff tan

SRIJAN Singh - 2 days, 1 hour ago

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mention[4099931:Gandoff Tan]

Percy Jackson - 2 days ago

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Thanks percy

SRIJAN Singh - 1 day, 23 hours ago

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