We're embarking on a wiki-writing project to help make the Brilliant wiki into the very best math resource online. We know that many of you are eager to contribute to Brilliant and help others to learn from your experience.

Our goal this weekend is to fill out and improve the Derivatives chapter in our Calculus section. While we'd welcome contributions to any page in this chapter, there are a few key ideas that are currently completely missing an explanation and examples. With everyone’s help, we can make these pages something that the community is proud of.To participate, you can jump in and write something helpful on one of the following (currently empty) pages:

- Rational Function Derivatives
- Logarithmic Function Derivatives
- Graphical Interpretation of Derivatives
- Instantaneous Rate of Change

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

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

**Thanks to our contributors!**

Pranshu and Rajdeep worked together to write and improve the pages listed here.

Your contribution are much appreciated. Not only have you helped the entire Brilliant community, you've also written pages that have received over 400 views since Friday!

**Feedback**

The Instantaneous Rate of Change wiki was amazing. Thanks to Pranshu for that one. We shared it out on Facebook this weekend. It's always helpful to have visuals to help people understand the ideas.

Rajdeep and Pranshu thanks for the Derivatives of Logarithmic Functions page. The examples are helpful. We decided to remove some of the "Try it Yourself" problems as we don't want *too* many on the page and some of them were hard to read and/or not formatted very well.

Rajdeep Thanks for getting us off to a good start on the Rational Functions page.

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

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italics`**bold**`

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

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## Comments

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TopNewestI have written a wiki on instantaneous rate of change. (I will soon be adding a solution to the last example). I have also added an example to derivative of logarithmic function $(\ln 5x)$ and have made some latex edits there as well.

Thank you, waiting for your reply...

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Oh wow, I'm really impressed by this page. Thanks for your contribution. It is clearly written, with great diagrams. I like the list of "changes we care about" that you listed at the start, and I really love the gif that you added in :)

I see that you added some example problems at the bottom, and other community members could help add in the solutions. This is great :)

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Thanks a lot!! Great to know that you liked the wiki; I really enjoyed writing it. Drawing and animating the diagrams was also fun :)

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@Calvin Lin I have filled out the wiki Dervative of Logarithmic functions. You could improve the Latex. Also try to add 2 or 3 images. Also make difficult problems and link them in the wiki. Down images show the wikis.

Thanking You,

Rajdeep

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Thanks! I've collapsed your images so that it doesn't take up too much space.

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@Rajdeep Dhingra thanks for your help! We really appreciate it.

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Not something significant but added a proof of quotient rule in the rational function derivatives.

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I did some work on the derivatives of exponential functions.

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