Strange behaviour of function zero points
I tinkered with some zooming in a function and found a rather strange behaviour.
I entered my function, used asymptote to find them, used "zero points" to mark them. Check the "ok" screenshot.
All is great until I zoom in a good bit. Then suddenly the zero points multiply themselves and are clearly graphed outside the curve. This happens if I scoll into the zoom, or if i select "zoom 400%" several times. Check the other screenshot, suddenly there are lots and lots of points.
Geogebra crashed on me then and I reopened it and re-entered the whole thing. Then, when I zoomed in the same thing happened.
Is this a bug or some behaviour I do not yet understand?