So far in my limited experience of UE4 I’ve not found a way to insert an equation into the Curve Editor. For example, I wanted an actor to move in a circle which requires an exact equation using the interior angle and the radius. So really this is two questions:

Is there any way to insert a graph/function/equation into the Curve Editor, e.g. y=SIN(x) or x=yCOS(a)?

Is there a way to create said function in a blueprint or external application and convert it into a curve?
Thanks in advance