Euler filter

An Euler filter is like a super smart calculator that helps us figure out how something is moving around in a 3D space. It takes information from different sensors, like cameras or gyroscopes, and uses some fancy math to tell us if an object is moving in a straight line, or if it's spinning around.

Imagine you're playing with a toy car and you want to know how it's moving. You can attach sensors to the car that will send information to the Euler filter. The filter uses this information to figure out if the car is moving in a straight line or if it's turning.

The Euler filter is really good at this because it uses some special math called quaternions that are like superpowers for math. These quaternions help the Euler filter figure out the orientation and rotation of the object. This means the filter can tell you how the car is moving even if it's spinning or flipping in the air!

So next time you see a cool video of a robot doing flips or a drone flying through the air, you can thank the Euler filter for helping make it possible. It's like a secret smart helper that makes sure everything moves just the way it's supposed to.