Weekend Wiki Party - Part 2 - Calvin Lin

Thanks to all of our previous wiki contiributors!

Last week, we held a "Weekend Wiki Party" and asked if anyone would be willing to help develop the wikis for a chapter in calculus that needed some attention. We had great results and 75% of the pages that were empty in that chapter were filled. Over 500 people have benefited from those pages in the past week.

Since there's still some areas of the wiki that need further development, we thought we'd ask again for your help and contributions.

Our goal this weekend is to fill out and improve some of our Trigonometric Identities in our Geometry section. A few important identities are completely missing an explanation on our wikis. With everyone’s help, we can make these pages something that the community is proud of. To participate, feel free to jump in and write something helpful on one of the following (currently empty) pages:

If you'd rather improve an existing page, the following page would benefit from additional explanation and more examples:

Triple Angle Identities

When you have made an edit that you are proud of, please make a comment and let us know!

Markdown

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

example link

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    # 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}

Easy Math Editor

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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'll start on one of those tomorrow sir and I believe I can contribute by making some nice questions too !

@Omkar Kulkarni

Dude , what say ? Isn't trigonometry your forte ? I think it'll be best if you are among the contributors :)

A Former Brilliant Member - 6 years, 2 months ago

My boards still going on! :( I have the last exam on the 24th! Till then I don't think I can find the time. I'll contribute after that! :D

Omkar Kulkarni - 6 years, 2 months ago

Ok :)

I wrote a wiki on Root test. Actually sir, it's not part of the wikis you listed out. I'm very sorry for that.

samuel ayinde - 6 years, 2 months ago

Thanks for your contribution. We love wikis in any areas, and not just in the ones that we listed up here. There are numerous people who contribute to the other wikis too. There's nothing to be sorry about! We are very grateful that you're improving the wikis for everyone :)

We felt that it would be more fun to have people to work on the same / similar wikis, so that the topics would be more developed out.

In fact, we are planning on making an announcement about the amount of cooperation that goes on in these wikis :) Stay tuned!

Calvin Lin Staff - 6 years, 2 months ago

Ok sir, thank you!!!!

I have also Contributed a wiki on "Routh's Theorem". I will be posting more soon.

Swapnil Das - 6 years, 2 months ago

Thanks, I saw that :)

I added to Sum to Product Formulas, Inverse Trigonometric Identities and Half-Angle Tangent Substitution. I can't think of anything Product to Sum Formulas is missing. Also, I can't think of any examples for Half-Angle Tangent Substitution, so that's blank.

A small question. Are \le and \ge supposed to produce $<$ and $>$ respectively? Or are they incorrect tags? Because when I tried using them, they produced $\leq$ and $\geq$ respectively.

Omkar, thank you for your contributions. In answer to your question, yes the tags you used are shortcuts for "Less than or Equal" or "Greater than or Equal".

It is latex convention that \le produces $\le$ and \ge produces $\ge$ .

Arron Kau Staff - 6 years, 2 months ago

Oh okay. Thanks! :)

I did some additional work on the Half-Angle Tangent Substitutions.

Sharky Kesa - 6 years, 2 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}`	$\boxed{123}$