Atan2 node please

[hitrpr]

This node/procedure is usually used to get angle from vector/position.
For radial/spherical/cylindrical coordinates etc. All about rotation around the point.

here how it looks now

Blend file: spiral.zip

And it is impossible to make own group with atan2 now.

reference https://en.wikipedia.org/wiki/Atan2

[pragma37]

Done! 31426b8 👍