Friday the 13th

Friday the 13th is back. I can't wait to see all sorts of problems, both weird and whacky, to be posted. Link the problems that you make based on Friday the 13th. This note will have a tag Fridaythe13th. Make sure your problems are also tagged with this as well. Happy horror movie marathon! :D

#Fridaythe13th

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

I'm a little scared about How to Train Your Dragon 2 now...

Trevor B. - 7 years ago

But it is only an animated film. Watch Robocop instead.

Sharky Kesa - 7 years ago

Robocop isn't scary dude

Beakal Tiliksew - 7 years ago

@Beakal Tiliksew – Hey, do you actually want nightmares? If so, watch Paranormal 4.

Sharky Kesa - 7 years ago

@Sharky Kesa – Or Saw.

Or Friday the 13th.

Daniel Liu - 7 years ago

@Daniel Liu – Nice choices.

Sharky Kesa - 7 years ago

@Sharky Kesa – i have seen all 3 movies, personally i am into final destination, Nightmare in elms street, and of course scream.

Beakal Tiliksew - 7 years ago

@Beakal Tiliksew – Just remember man, Daniel, Trevor and I are younger than you.

Sharky Kesa - 7 years ago

Movies released on Friday the 13th tend to usually be scary, so I was jokingly implying that there might have been something that the trailer wasn't telling us. A bunch of friends and I are going to see it, but I don't think any of us realized (or would care if they did) that it was released on Friday the 13th.

Additionally, I don't really like scary movies. There are very few movies that I will actually go and watch, but one of those is HTTYD2. I'm more of an anime person.

Trevor B. - 7 years ago

Watch Edge of tomorrow or Maleficent. They are better than Robocop, according to critics at least.

Thaddeus Abiy - 7 years ago

Live, die, repeat.

Sharky Kesa - 7 years ago

@Lucia and Emma https://www.youtube.com/watch?v=lUFTEDhKHC4&index=12&list=PLGwgZrZRp4vCqnazaH8itaP7ySRg_let9

Lucia and Emma - 2 years, 10 months 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}`	$\boxed{123}$