@jonathan would like you to share your usage of any Math Equations out in the wild.
If you can share in this thread to keep them in one place.
Math.abs(Math.cos(t*2) * ( Math.sin(t*4)))
Added to the start keyframes with the end as ease in out.
Function from the https://soulwire.co.uk/math-for-motion/
This is used on the playing animation the radio station www.ourmusicradio.com