Intersection between ellipse and semicircle - Undefined.

Broderelg shared this question 4 years ago

Answered

I am working on an animation and want to have a point second point moving on an ellipse but in a set distance from the original point on the ellipse. I normally chose circles, but as they sometimes switch between the two possible intersections I've made a semicircle instead.

Now the problem is, that my intersection point (G) disappears every now and then, and I can't figure out why.

Any suggestions?

https://www.geogebra.org/m/bMPyhHMK

Regards Bo.