latex help

i dont know how to use latex but i have few problems that i have thought in my mind but could not contribute it to brilliant though i am curious . so pls help

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

On the bottom left corner of the comment box,you should be able to see words written us "formatting guide",click on it .

Beakal Tiliksew - 8 years, 1 month ago

thnks but culdnt undrstnd frm there. [Example from Peter : $\frac{34}{4}$ ]

superman son - 8 years, 1 month ago

Diganta,

I have just inserted an example of how to make Latex format on brilliant into your comment. Go into the editing view of your comment to see how I typed it. Once you learn how to bracket the math in \'s and parentheses, much of the actual typing of Latex is intuitive or requires looking up in our formatting guide, or the above aops wiki. Good luck!

You can use the comment "preview" button to practice.

Peter Taylor Staff - 8 years, 1 month ago

@Peter Taylor – thanks a lot

superman son - 8 years, 1 month ago

Use this Art of Problem Solving link to download some latex software. I takes a few hours, but after it all you really get to understand how and why to use latex.

Bob Krueger - 8 years, 1 month ago

thnks

superman son - 8 years, 1 month ago

but the link is the link of brilliant org of this page

superman son - 8 years, 1 month ago

@Superman Son – Sorry. I don't know how to fix it. There's the link.

Bob Krueger - 8 years, 1 month ago

@Bob Krueger – I went ahead and fixed it for you, the issue is the Art of Problem Solving site uses the ":" character in some of their urls which confuses the markdown parser. The solution is to replace the : with a %3A (which is the urlencoded equivalent)

Sam Solomon Staff - 8 years, 1 month 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}`	$\boxed{123}$