Hello Brilliant!

Brilliant's third Problem Writing Party was a great success as always. Thanks to all the contributions from Rohit, Efren, Sravanth, Agnishom, Hobart, Refaat, Chan Lye, Hjalmar, Pranshu, Manmeswar, Soumava, Racchit, Lakshya, Chinmay, Worranat, Anish, Arjen, Rajdeep, Nihar, Hobart, Jason, Pranshu, Margaret,, Lee, Jason, Vignesh and the countless others of you who helped!

This week, we were able to create a 5 new quizzes. Here are the quizzes that you all helped create:

New Brilliant Challenge Quizzes

As always, we're going to continue showing off the hard work these members of the community put in over the last week, so Brilliant will featuring these quizzes in topic listings and social media. Now that those announcements have been made, we're moving on to our fourth Problem Writing Party!

The party starts right now (February 29th, 2016) and will last for the next two weeks. Throughout the two weeks, we will be focusing on writing awesome problems for the topics listed in quizzes that need your help on the **publish** page.

To join, submit as many problems as you want to these listed topics. At the end of the party, Brilliant staff will be picking the best 5-10 problems for each topic. These problems will then be immortalized and formed into a challenge quiz. If we pick your problem, then you can brag to your friends because it will be displayed on Brilliant forever! Your problem has a better chance of being selected if you include a graphic (when appropriate) and a solution.

Ask questions about the party or brainstorming ideas from Brilliant staff.

Share links to great relevant problems.

Bounce your ideas off each other to help formulate the best problem you can.

*To be selected, problems you submit should be fun and challenging to a student in levels 1-3 for the given topic.*

The topics of problem submission for this party can be found by navigating over to the Brilliant publish page and checking under the quizzes that need your help section. Just click the contribute button next to the topic you want make a submission to.

Happy writing and continue to party on!

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## Comments

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TopNewest\[\Large \text{The topics for this party can be found in the link below}\]

Topics for the problem writing party

Remeber: Your problem has a better chance of being selected if you include a graphic (when appropriate) and a solution.Log in to reply

And don't forget to use the latex (where appropriate) in the problem and the solution.

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Can I use Daum application to post a problem or to write solution?

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@Sridhar Sri Yes you can, for now. But it would be great if you post the problem/solution into latex and text. If you need any guidance on latex, Daniel's LaTex Guide will help out gently. Thanks!

Waiting for you problems. \(\ddot \smile\)

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the time-keeper :-a problem i made

SHM physical pendulum

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@Rohith M.Athreya Very nice problem. Thanks for your contribution. Looking for your innovative problems of more topics. :)

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Hey there people :)

Here is my set.I will keep adding more problems.

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Wow! Great, you've created a complete set which is awesome. Thanks a lot! Waiting for new problems to be added to the GREAT SET of yours. \(\ddot \smile\)

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Thank you sir! :D

Just a result of Fiitjee teaching me SHM :P

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Computer Science \( \rightarrow \) Sorts

Sort the sorted

Tidying Up Some Numbers

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I knew I could count on you for some good computer science problems Zeeshan. ;)

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This is a great contribution. I loved the problems. Thanks! \(\ddot \smile\)

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My submission:

Floor and ceiling functions: One, Two, Three

Capacitors: One, Two, Three, Four, Five, Six

Transformers: Step-up or Step-down?, Transformer DC

3D Coordinate Geometry: Three

I will update this comment if I share more problems. This is the set containing all of my problems for this party - Set

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Here are some problems on Floor Functions, hope you like it .

This Floor is slippery and I love 333, but this is ... .

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Nice problems Anish. The first one is yummy. Thanks! @Anish Harsha

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You're welcome, sir ! :D

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Another level of question on Combinatorics-Recursion: Fractal Cubes.

This one may be a little crazy. ;)

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Why are all of your problems so awesome?

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Thanks! Maybe because I got inspired. ;)

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Electricity and Magnetism \( \rightarrow \) Circuits \( \rightarrow \) Resistors \( \rightarrow \) Equivalent Resistance \( \rightarrow \) FUN :)

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@Zeeshan Ali The circuit looks like the first letter of my name. I loved it. Thanks! :)

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I don't see any Computer Science question.!! Hurry up, you computer scientists! :)

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Here comes my new one on Combinatorics-Recursion: Fractal Squares.

Hope you'd like it. ;)

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Here are my entries..............

Capacitors - 1

Capacitors - 2

3D - 1

3D - 2

F n C - 1

SHM - 1

SHM - 2

Enjoy Solving!!!

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Great problems @Manmeswar Patnaik Thanks \(\ddot \smile\)

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Thanks Sir!!.....Please check out the other entries............ @Sandeep Bhardwaj

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Here is a problem on recurrence.

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Nice problem @Svatejas Shivakumar

It would be great if you post an awesome solution to your problem to get it featured. Thanks! \(\ddot \smile\)

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Here's mine contribution on capacitors

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Nice one. It would be great if you post an awesome solution to your problem to get it featured. Thanks! \(\ddot \smile\)

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I posted a problem on recurrence relations a few days ago.

This sounds fun, until you realize your life is at stake

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Wow! This one is a bit too hard for what we're looking for in recurrence relations, but I think you've got a knack for writing some good problems. Got any fun, easy ones tucked away?

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Sure, will try to come up with some fun but accessible problems. I will update the post above if I manage to write some nice ones. :)

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Here are mine: ( I will keep updating)

Great Circles (recursion)

Only 0,1,2,3,4 (recursion)

Is it Algebra at all? (3-D Geometry)

Another recursion problem (recursion)

Fat Subsets (recursion)

Emergency to return (recursion)

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I like trees

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Cool Problem. Thanks!

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@Sandeep Bhardwaj

Do check out my problems. :) I added 5 more of them. I will add more after my chemistry exam on the 9th.

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@Soumava Pal :)

Nice problems.Log in to reply

@Sandeep Bhardwaj

Thanks

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I would like to contribute this problem I'm Floored for the party

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Nice Problem @neelesh vij Thanks :)

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See my problem, Battery Charger on the topic Capacitors and Transformers. :)

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Looks great! :)

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Here's my first one for Geometry-3D Coordinates: Box in the Air.

Hope it's not too easy. ;)

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Cool problem with a cool name. Thanks Dr. Warm! @Worranat Pakornrat

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You're welcome. Surely more will come. ;)

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Blank

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Sorry this is a late entry please improve it

PS:- I don't have solution

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Your problem is too general... State what kind of sentence it is! (It looks quadratic, but is it?)

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Please check a question on floors and ceiling click here. Please a mod or staff improve this up. Thanks

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It's more likely to be chosen if you give it a solution. ;)

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My new one on Algebra-Ceiling & Floor Functions: Hit the ceiling! Hit the floor!.

Hope it's not too easy. ;)

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3D coordinate geometry: It's a bird! It's a plane! It's not superman...

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a problem on recursions at loggerheads with logarithmic recursions

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Great one, thanks!

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This is my new question on Geometry-3D coordinates: Simple Section.

Enjoy! ;)

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Enjoyed! ;) It was enjoyable.

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Thanks! I enjoyed writing it, too. ;)

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My new problem on Curve Sketching Inspired From Inspiration

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You post the problems which are quite helpful specifically for the guys who are preparing for JEE. That's great. Thanks!

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Sir i am preparing for JEE-ADV 2016 and my board exams are finished. Now i am Free.

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Jee Queries with the Best Solutions. And if you have any specific questions, let me know and I'll help you out.

You can check out my set:Log in to reply

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A floor/ceiling problem. I'm going to try to think of some for curve sketching, but so far the only ones I have done before/thought of require you to actually sketch the curves...

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Cool problem.c:

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@Hobart Pao Lovely problem. Yeah, I agree with the point you made. It involves the use of many concepts likely graph of floor function, geometrical interpretation of integral, arithmetic progression sum, finding the roots of a quadratic equation. :P

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Thanks for the encouragement @Kunal Verma, @Sandeep Bhardwaj!

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@Andrew Ellinor I just had another problem created, but I could not format it correctly. Could you please help? the problem means "the floor function of the absolute value of \(\frac {2x-3}{4}\)". What floor is it?

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Fixed Margaret! Check out the LaTeX to learn something new. :)

Also, I like this problem so much that it's definitely going into a quiz.

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thanks:D

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Here's my recursion problem: Vole crossing

This might be too difficult for a quiz, but I think it's a pretty neat problem.

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@Kerry Soderdahl This problem can be defintely used for some Level 4-5 quiz. Thanks! Looking for more great problems. :)

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My third question.

Sigma Ceilings

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@Lee Care Gene Nice building of ceilings. I enjoy your problems a lot. :)

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the time-keeper :-a problem i made

SHM physical pendulum

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@Rohith M.Athreya Great Great Great! Looking for more of your innovative problems for other topics of the Problem Writing Party. :)

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sum of some floored,summed series

a problem on floor functions that i made :)

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This one for starters: Triangle and Line.

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@Arjen Vreugdenhil Yummy starter! :)

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Here is another problem, for 3D Coordinate Geometry

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@Hjalmar Orellana Soto Tangent in three dimensions is coolest. Thanks! :)

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My new Question on Inductor + Capacitor

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@Rishabh Deep Singh

Good problem. But it is recommended and it's great that you don't include the

textinto the latex. Use latex only for mathematical expressions. Can you please make edits to your problem accordingly?Thanks!

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I will do it in my upcoming Questions.

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@Rishabh Deep Singh I've edited the above problem of yours. Can you please check if it's all good?

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Another new one on Geometry-3D coordinates: Box in the Air (Part 2).

Have fun! ;)

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I would like to fit myself diagonally in that box which will be a great exercise. :P

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Haha...would you like to be a cat in the box? ;)

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You'll definitely enjoy solving the following problems:

Resistors \( \rightarrow \) Equivalence of Resistors

Resistors \( \rightarrow \) Product of equivalent resistances

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@Zeeshan Ali I like the beautiful circuits in your problems. Thanks!

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My contlibusion: Andlew's Dleam

Sorry , I can contribute only one problem this time :(

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No problem, Nihar! You can contribute more problems to the following parties.

Night ploblem. ;)

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Thyankss!!

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I added a few problems in logarithm inequalities. What do you think of them?

When is this logarithm inequality true

Split a log

Many logs inequality

Calculus of parametric equations can be tricky. I might try just parametric equations.

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I loved all the problems.

It would be great if you post the problems from the topic list of this party which can be seen at the Publish Page.

Thanks!

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My second question.

Sigma Floors

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Is the ground floor left empty for rent?

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Maybe XD

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Computer Science \( \rightarrow \) Sorts

Original array retrieval

Tidying Up Some Numbers Again

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Nice ones. These will be great for a quiz. Thanks!

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Try my new question Limit It is out of given topics.

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Hi Rishabh, this is a great question! Do you think you could post problems that are focused on the topics for

thisproblem writing party?Log in to reply

Ok I will.

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Electricity and Magnetism \( \rightarrow \) Circuits \( \rightarrow \) Capacitors and Transformers \( \rightarrow \) Never mind

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Can I post the questions till 13 March

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Yes , of course! Looks like @Andrew Ellinor can definitely count upon your numerous contributions for many topics for this party :)

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@Deepanshu Dhruw I see that you post good problems. Excited to see your problems for this party. And yeah you can post the problems till 13 March. I'm waiting. :)

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Here's one for floor and ceiling functions:

Don't Try And Math It

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Nice problem @Brandon Monsen

It would be great if you post an awesome solution to your problem to get it featured. Thanks! \(\ddot \smile\)

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Just posted one! I'll make some edits for coherence but the meat of it is there.

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This time my contribution will be poor, but here is something for Floor and Ceiling Functions

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My first question.

The Past, The Present And The Future With Ceilings And Floors

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Nice Problem. But the expression needs to be made more clear. In the numerator, does "2015/2016" represents the power of "2015"?

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My question on Capacitance An electricity and magnetism problem by Rishabh Deep Singh

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Here are my problems(I would keep updating):

https://brilliant.org/problems/a-simple-recursion-for-2016-and-2018/?group=NizZDUR4Adun

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Nice problem @Samarth Agarwal

FYI if you want to link a problem, you can do it this way \(\to\) [Name of the problem] (link)

I'm linking your problem in this comment. Here it goes: A simple recursion for 2016 and 2018

Excited to see more problems from your side. Let me know if you've any queries. Thanks \(\ddot \smile\)

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Thanx sir for creating a link to my problem, I would try to contribute more but I have exams till 18th March :(

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All the best for your exams!

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This is my new question of Calculus-Curve Sketching: Rise within Roots.

Enjoy! ;)

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All right! Looks good. We could use some great curve-sketching problems.

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Thank you. Glad you'd like it. ;)

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More coming. These are for floor/ceiling fxns:

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Now these look like some mind benders! I'm excited for these.

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Thanks! :)

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Here's my introductory problem for Simple Harmonic Motion(Waves- Doppler Effect) Shake it to my Beats

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Beautiful! More Simple Harmonic Motion problems would be great if you can think of some fun ones! :)

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Here are some problems (I will keep updating this as I post more)

Floor and ceiling functions:

Pixelated Poké Ball

Let's go up a floor

Curve sketching:

Dueling functions

Where do we start?

Try FOILing, maybe?

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Nice set! I particularly enjoyed Pixelated Poke Ball, being a huge pokemon fan myself.

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I knew I could count on you to post a handful Jonas. These look great!

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Thank you guys for the support! :)

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I have included over 27 mind blowing problems in my set 26 mind turning problems

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But do they have anything to do with the topics listed in this problem writing party?

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First thing, why are you after my life? 2 thing 50% of the problems are related to the topics, and the last thing I did not consider making a new set for just posting here

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here and contribute awesome problems which would force Andrew to select!

I viewed your set and it has very nice problems. But sorry to say , I can't find a single problem related to the topics in this problem writing party. You might review the topicsLog in to reply

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My Problem on Oscillations A classical mechanics problem by Rishabh Deep Singh

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Again a nice problem!

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See My Problem Roots Finding

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Nice problem @Rishabh Deep Singh

I'm quite glad to see you contributing such wonderful problems. Thanks \(\ddot \smile\)

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Thanks Friend.

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What are the topics that we need to put questions?

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You can go to the Publish Page to get the topics needed for contribution.

Looking forward to have awesome problem from your side. Thanks! :)

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Thanks.

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Here are the questions from my stock on Combinatorics-Introduction to Recursion:

Snip! Snip!

Can you count all these oranges?.

Have fun! ;)

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You've got a nice stock. Congratulations!

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Thank you. Hope to come up with new ones, too. ;)

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This is my fun question on Algebra-Floor & Ceiling Functions: Which day was it?.

And for Combinatorics-Variance: Who's the tallest of them all?.

It's kind of straight forward, but I still like it. ;)

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The first problem is really fun to check your patience on calculations ;).

FYI you should use "\left \lfloor ... \right \lfloor" if the expression inside the floor doesn't fit well.

Thanks!

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Oh, OK. Probably I was kind of lazy at night. Thanks for your advice. ;)

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