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Problem Writing Party: March 14 - March 27th

This party is now over. Thanks for your contributions. You can see what we chose by joining the next party!

Greetings Problem Partiers!

Problem Writing Party number four went splendidly! Even though only three community quizzes were made, we are so close to creating a handful of others. With that in mind, we'll be recycling some of the topics from previous problem writing parties. A special thanks to Zeeshan, Jonas, Hobart, Svatejas, Nihar, Toto, Rohith, Deepanshu, Lakshya, ZK, Chung, Anish, Rishabh, Brandon, Margaret, Neelesh, Akhil, Manmeswar, Arjen, Lee, Kerry, Sridhar, Kunal, Hjalmar, Soumava, Worranat, Pranshu, Mehul, and Samarth for all your contributions!

Here are the 3 quizzes that you all helped create:

New Brilliant Challenge Quizzes

We'll be showcasing these quizzes all over social media in the coming weeks because these problems truly are impressive. Okay, announcements over. Let's kick off the fifth Problem Writing Party!

How it Works

The party starts right now (March 14th, 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.

Use this note to

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

2. Share links to great relevant problems.

3. 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.

-------->This Party's Topic Listing<--------

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 to make a submission to.

Happy writing and continue to party on!

Note by Andrew Ellinor
10 months, 1 week ago

Sort by:

Great problems! I liked third one the most. Thanks :) · 10 months ago

Thank you Sandeep :) · 10 months ago

Comment deleted 9 months ago

Oh my God! · 10 months ago

Thanks: -) · 10 months ago

Welcome to my mysterious function problem: The Hidden Function.

Can you work out what $$f(x)$$ is? ;) · 10 months ago

Nice set of questions ;) · 10 months ago

Here's some of my function problems:

Function Challenge 2!

Function Challenge 3!

Function Challenge 4 (Inverse functions)

Function Challenge 5 (Function graphs) · 10 months ago

My new problem on Geometry-Coordinate Plane has come: The Tale of Two Trigones.

Can you find the area of the two? ;) · 10 months ago

$\text{You will enjoy solving these problems, believe me..}$

Computer Science $$\rightarrow$$ Types and Data Structures $$\rightarrow$$ Graphs $$\rightarrow$$ Can you count edges ?

Computer Science $$\rightarrow$$ Types and Data Structures $$\rightarrow$$ Graphs $$\rightarrow$$ Identify the graph

Computer Science $$\rightarrow$$ Types and Data Structures $$\rightarrow$$ Graphs $$\rightarrow$$ Identify the Adjacency List · 10 months ago

I guess believing you is worth. Thanks for the awesome problems. :) · 10 months ago

Algebra $$\rightarrow$$ Functions $$\rightarrow$$ Domain of 'fog'

Algebra $$\rightarrow$$ Functions $$\rightarrow$$ Let's get rid of Radicals

Algebra $$\rightarrow$$ Functions $$\rightarrow$$ Which type of function is it? (I)

Algebra $$\rightarrow$$ Functions $$\rightarrow$$ Restrictions on Domain

Algebra $$\rightarrow$$ Functions $$\rightarrow$$ Cute Function · 10 months ago

What a cool set of problems! This is really a wonderful contribution. Thanks! :) · 10 months ago

My entries :

Relative SHM...coming soon · 10 months, 1 week ago

The "Chain Reaction 1!" and "Chain Reaction 2!" initially gave me a feeling of chemistry. LOL! By the way great problems esp the SHM problems. Thanks! :) · 10 months ago

Your welcome! :) · 10 months ago

This is my entry for the co-ordinate part - Lets Draw the figure , Circle or Vieta's · 10 months, 1 week ago

I guess the coordinate part is 3-dimensional coordinate geometry. Anyways, nice problems. Looking for more problems from the topics listed. Thanks! :) · 10 months ago

Thanks sandeep sir ! I am working on the functions · 10 months ago

Here's my entry for the party.

Topic functions: functions and more functions

Another problem(might be off topic): perfect square in polynomial form · 10 months, 1 week ago

Thanks for your submissions Neelesh! They look like a good start, but let me give you some feedback. When you visit the topic list for this party, note that functions is listed under algebra. So as awesome as it is, the problem you posted for functions requires calculus and might be useful for a later party.

As for the second problem you submitted, it doesn't happen to fit any of the topics we listed. :P

Keep it up though! I like both of these problems and had fun solving them. · 10 months, 1 week ago

I Will Post some cool coordinate and SHM Problems By Tomorrow · 10 months, 1 week ago

sorry for wrong submission! i'll keep it in mind and soon put up some problems · 10 months, 1 week ago

Two new problems:
Capacitors - Pulling apart a capacitor
Coordinate plane - Oblique Coordinates

Two old problems, updated with improved wording and solutions:
Calculus of Parametric equations - Area, Arc length · 9 months, 4 weeks ago

Thanks Pranshu! :) · 9 months, 4 weeks ago

My latest question on Geometry-Coordinate Plane: Cut Through the Circle.

Hope it's not too late. ;) · 9 months, 4 weeks ago

Great, thanks! And it's not too late ;) · 9 months, 4 weeks ago

Thanks! Glad to see you again. ;) · 9 months, 4 weeks ago

I'm glad too to see you again and again. ;) · 9 months, 4 weeks ago

Lol...;) · 9 months, 4 weeks ago

One more original contribution: Andrew did not provide enough information! · 10 months ago

Thanks Nihar! Andrew is enjoying the names of your problems. ;) · 9 months, 4 weeks ago

Here is my submission on functions. · 10 months ago

Thanks @Svatejas Shivakumar for the nice problem! · 9 months, 4 weeks ago

This is my new one on Calculus-Parametric Equation: Dorothy's Flying!.

Enjoy! ;) · 10 months ago

Great one! · 9 months, 4 weeks ago

Thanks! ;) · 9 months, 4 weeks ago

Sorry for being late and for the original problems but Civil Engineering department give me little time to live my life. Anyway hee is my entries . For floor function floor square sum For SHM SHM problem For Waves Waves problem · 10 months ago

LOL, your department is so strict. They should give you, at least, one life to live. Thanks for the great problems that you managed to contribute even being tight scheduled. Thanks! :) · 10 months ago

Thanks Sandeep :) · 10 months ago

Comment deleted 10 months ago

Thanks Ashish for the nice problem. Looking for more from other topics too. Thanks :) · 10 months ago

I have combined them and posted it again. · 10 months ago

You're welcome. It was my duty and pleasure. :-) · 10 months ago

Here is something for Functions · 10 months ago

Played nicely with square root and modulus. Thanks for the nice problem. :) · 10 months ago

Just got a very simple function question for beginners. inspiration never stops · 10 months ago

Wonderful problem with the coolest name. Thanks :) · 10 months ago

Thanks for the compliment! · 10 months ago

Just type the name you want to link within [] brackets, then paste the url in ()brakets. :-) · 10 months ago

Thank you so much!:D · 10 months ago

Welcome, it was my pleasure · 10 months ago

My Contribution is : One sided limits · 10 months, 1 week ago

I guess you provided the wrong link. Can you please look for that? Thanks! · 9 months, 4 weeks ago

Here is an old problem of mine in functions : Here . · 10 months, 1 week ago

Thanks Anish! · 9 months, 4 weeks ago

My second problem contribution: For the SHM quiz (maybe its a tad bit difficult):

'2. Wobbly ellipse · 10 months, 1 week ago

BTW you have got a wonderful name. :) · 9 months, 4 weeks ago

This is my contribution to the party: Its a problem for capacitors quiz.

· 10 months, 1 week ago

Thanks! :) · 9 months, 4 weeks ago

My contribution to capacitors section. · 10 months, 1 week ago

Thanks Rohit for the contribution on capacitors! · 9 months, 4 weeks ago

Here's mine for Functions

Who developed the mod function? · 10 months, 1 week ago

Thanks @Mayank Singh :) · 9 months, 4 weeks ago

Here's my entry for the party:
Functions...(functions) · 10 months, 1 week ago

Thanks for all of your cool problems. :) · 9 months, 4 weeks ago

Thanks for trying all of them :) · 9 months, 4 weeks ago

Another entry:
Coordinate Geometry · 10 months ago

Another entry:
Functional Equation(functions) · 10 months ago

Here's one The mysterious point And another Think you know the ellipse? Think again Both are coordinate geometry. · 10 months, 1 week ago

Great ones, thanks! · 9 months, 4 weeks ago

Here you go for Functions:- Squares R.I.P . And thanks for the mention c: · 10 months, 1 week ago

Nice problem, thanks! · 9 months, 4 weeks ago

Here's my entry, since functions are the only thing i know from the choices:

Functions: Annual Growth

It might be kind of easy.

For my second functions entry, here's The Donut Upsurge.

I'm not sure if this can classify as Algebra or Number Thoery, but functions can be applied to it so... Just enjoy The Summation Secret

And for my data representation entry: Dessert Survey · 10 months, 1 week ago

Wowww! Thanks for your amazing contribution. :) @Gian Tuazon · 9 months, 4 weeks ago

Here's mine

Cool 3-D problem

One more 3-D problem

Angle in 3-D · 10 months, 1 week ago

Cool problems! Thanks @Akshay Sharma · 9 months, 4 weeks ago

Calculus of parametric eqns.

· 10 months, 1 week ago

Fun problem, liked it very much. Thanks! · 9 months, 4 weeks ago

Here is my entry for Coordinate Geometry:

https://brilliant.org/problems/a-problem-by-soumava-pal-3/?ref_id=1147246 · 10 months, 1 week ago

Thanks @Soumava Pal for your contribution! · 9 months, 4 weeks ago

@Sandeep Bhardwaj Sorry sir, I could not give more problems because my class XII board examinations were going on. Looking forward to the next problem writing party. I will be back with more problems. · 9 months, 4 weeks ago

Never mind! I am aware that most of the guys were have exams in the time period of this party. And I know that the next party will be the best party as yet. :)

I hope that you did great with your exams. · 9 months, 4 weeks ago

Yes, everything went good, except physics. Got a bit short on time. :P Yes the next party is gonna be fun because everyone is gonna be active after these exams. · 9 months, 4 weeks ago

Don't worry, even your one contribution helps a lot :) · 9 months, 4 weeks ago

@Nihar Mahajan
Thank you for that. Though I am not too good in coordinate, and the property I used in this problem is one of the very few that I know. XD · 9 months, 4 weeks ago

Sir, where should i publish · 10 months, 1 week ago

Create your problems, post them and put a link here. · 10 months, 1 week ago

Thanks · 10 months, 1 week ago

Here are my submissions for SHM

A tunnel so long

Easy SHM

Here is for coordinate geometry (Locus problem)

Conic problem

@Andrew Ellinor · 10 months, 1 week ago

Thanks @Prakhar Bindal for the nice problems! · 9 months, 4 weeks ago

Here's mine: Andlew's phuncsion .

EDIT: This too :) Andlew's phuncsion 2 · 10 months, 1 week ago

Nice work on the accent tho. · 10 months, 1 week ago

Thanks Nihar! · 9 months, 4 weeks ago

My new challenging question on Geometry-Coordinate Plane has come: Bending a Triangle.

Can you bend this triangle? ;) · 10 months, 1 week ago

Now THAT'S the kind of fun challenging coordgeo problem I've been looking for. Thanks! · 10 months, 1 week ago

Thanks! More will come. ;) · 10 months, 1 week ago

Here are my new entry on Geometry-Coordinate Plane: 1, 2, 3, 4, 5....

& Algebra-Functions: Fibonacci Reversed.

Have fun with the new party! · 10 months, 1 week ago

Hey Dr. Warm! The Fibonacci Reversed question was kinda fun and I think it will go well in a level 2-3 quiz on functions.

The point-to-line distance formula is slightly overused though, so maybe there are some problems that are a little more fun. ;)

For instance, this problem uses the point-to-line distance but in an intriguing way: https://brilliant.org/problems/coupled-lines and this problem also stretches the brain a little bit: https://brilliant.org/problems/possible-right-triangles :) · 10 months, 1 week ago

Thanks, Andrew. I'll surely come up with more challenging lines & points. ;) · 10 months, 1 week ago

Hello @Andrew Ellinor here is my submission ..... · 10 months, 1 week ago