# Is this an accurate explanation of a covariance matrix?

My intent is to provide a simpler description, instead of a mathematical proof, and a practical example of a covariance matrix, especially as they are used in ROS.

Did I hit the mark with:

Thanks! Helped my understanding of it. (4 years later it's still helping people)

I found it helpful 5 years later :)

nice read, 6 years later

Still a great read 7 years later!

Nice, very comprehensive

Helpful, 8 years later!

Helpful 10 years later!

On occasion, one manages to understand something. Sometimes, others find it useful. I'm pleased to see this explanation has survived for ten years. I didn't expect that to happen way back in 2012 .