Yes that is exactly how I used it.

But thanks for clarifying for the others that may read the post.

Actually I just tested your formula out also - although it does work (as in Revit accepts it as valid)

It is not correct for my needs, basically the minimum angle I can have is 30 degrees. I probably need to change the other formula down to 1 degree minimum.

if(and(Angle > 1.5°, Angle < 35°), 30°, if(and(Angle > 35°, Angle < 67.5°), 45°, if(and(Angle > 67.5°, Angle < 90°), 90°, 0°)))

Then in my schedule I can filter out any results that report 0 so they don't figure in my lists.