This week, we're trying something a little different with the Weekend Wiki Party, and there should be something here for everyone. Below, you'll find the most visted pages in each topic on Brilliant that currently have *no* content.

These pages are about things that people on Brilliant want to know about, but there's currently nothing on our wiki to help them. Can you help them out by adding to these pages?

### Calculus

Simple Sequences

### Algebra

Absolute Value

### Combinatorics

Dilworth’s Theorem

### Number Theory

Perfect Numbers

### Logic

Tic Tac Toe

Truth Tables

### Cryptography

Vigenere Cipher

Quantum Cryptography

### Computer Science

Input Output

### Physics

Field Lines and Field Strength

Determining the Power put into a System

Leave a comment if you make an edit, and thanks for helping make Brilliant the best place in the world to learn math and science!

$</code> ... <code>$</code>...<code>."> Easy Math Editor

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in $</span> ... <span>$ or $</span> ... <span>$ to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

## Comments

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TopNewest@Calvin Lin Sir, I contributed to the "Absolute Value" Wiki.I added examples to each section , improved the definition and added some properties to the notes of absolute value.Hope you like it :)

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Thanks! That page is beginning to look better :)

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Is it okay, if I help with these pages after JEE, that is, next week? I am saving this note so that I can remember to do so.

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Certainly! Help at any point in time will be welcome.

All the best with JEE!

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Thank you sir!

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Edited out/Cleaned up $\text{Perfect Numbers } \ddot\smile$

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Oh yay! That page looks much better than it did the day before.

It could benefit from adding some proofs, or combining the list of properties which are mostly "it has the form $2^{n-1} ( 2^n - 1 )$.

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Sir, i've contributed to the graphs of inverse trigo. can u check it??

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A stopwatch has a least count of 0.1 seconds it does 20 oscillations in 25 seconds find error in time period

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0.125secs?

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In response to ayanlaja answer, please can you tell how the answer came

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