can_i_change_the_number_of_lets_say_poligon_number_AFTER_creating_the_circle?
short answer is no not that way..
Longer answer, there is an addon that creates Primitives that stay adjustable after creation:
Here's a short video with a link to the Addon in the description:
https://www.youtube.com/watch?v=zUFWcGAoDPw
thanks a lot, I'll try it. I came from cad, but meshes and parametric drawing are apples and peas... this characteristic is what'll make blender top over the top of the world