# Derivative checker

- Author:
- Janet Chen

- Topic:
- Derivative

This applet will try to check whether you've calculated a derivative correctly.

*Note:*Computers are extremely finicky with functions, so there's a chance that the computer will think your answer is incorrect even when it's correct. In that case, take a look at the purple graph, which is the difference between the actual derivative and your derivative; if the purple graph appears to just be 0, that means your derivative is most likely correct, and the computer is just being difficult!*This applet is still experimental, so it may not work perfectly. If the computer doesn't agree with you, check with a real person!*