Locus of a list with circles and a line: very unstable
The attached GeoGebra file implements the inversion of a páck of circles using a rectangle with circles and a straight line. But it has several instabilities in its operation. Please, see the animation here:
If I ask to GeoGebra animate the point P after the construction is loaded, P walks over all elements of the list. But, if I change the value of n, the animation of P occurs only on the top circles.