New Checkpoint Added to Probability and Combinatorics Practice

We've added the following chapters to the Probability and Combinatorics Practice Map:

Counting with Restriction
Bijection / Injection / Surjection
Counting 2
Combinatorial Review 2

We will continue to extend the practice maps and add new maps on a regular basis. Thank you to all of our new Brilliant Squared members!

#Combinatorics #Probability #BrilliantAnnouncements #Practice #BrilliantSquared

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.

Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered 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"

Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

please add some new checkpoints in advanced algebra and calculus as well!!! Brilliant Squared is too gud!!

A Former Brilliant Member - 7 years ago

Cool. Noticed you put a link to Brilliant Squared members which reminded me of something. Could there be a page full of the names of people who subscribed to Brilliant Squared? I dunno, it'd be just kinda like a "Hall of Fame" sort of thing as an added benefit for subscription. :D

Finn Hulse - 7 years ago

It was only a short time ago when you were supposedly strongly against $B^2$

Michael Diao - 7 years ago

Eh, I wasn't really against it. I just thought that Brilliant was capable of getting funding from other sources. I'm sure there are tons places. It's for an AWESOME cause as anybody could tell. :P

Finn Hulse - 7 years ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$